Home / 28,011.38-38,655.52-15,436.14

Finding the Fourth Proportional to 28,011.38, 38,655.52 and 15,436.14

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Solution

The fourth proportional to 28,011.38, 38,655.52 and 15,436.14 is: 21,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.38 : 38,655.52 = 15,436.14 : x
  2. Step 2: Convert to fraction form
    28,011.38/38,655.52 = 15,436.14/x
  3. Step 3: Cross multiply
    28,011.38x = 38,655.52 × 15,436.14
  4. Step 4: Simplify right side
    28,011.38x = 596,692,018.49
  5. Step 5: Solve for x
    x = 596,692,018.49/28,011.38
  6. Step 6: Final answer
    x = 21,301.77

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Half scale
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Double scale
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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.