Home / 28,019.52-38,667.38-15,444.27

Finding the Fourth Proportional to 28,019.52, 38,667.38 and 15,444.27

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Solution

The fourth proportional to 28,019.52, 38,667.38 and 15,444.27 is: 21,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.52 : 38,667.38 = 15,444.27 : x
  2. Step 2: Convert to fraction form
    28,019.52/38,667.38 = 15,444.27/x
  3. Step 3: Cross multiply
    28,019.52x = 38,667.38 × 15,444.27
  4. Step 4: Simplify right side
    28,019.52x = 597,189,379.69
  5. Step 5: Solve for x
    x = 597,189,379.69/28,019.52
  6. Step 6: Final answer
    x = 21,313.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.