Home / 28,228.62-38,944.38-16,289.65

Finding the Fourth Proportional to 28,228.62, 38,944.38 and 16,289.65

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Solution

The fourth proportional to 28,228.62, 38,944.38 and 16,289.65 is: 22,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.62 : 38,944.38 = 16,289.65 : x
  2. Step 2: Convert to fraction form
    28,228.62/38,944.38 = 16,289.65/x
  3. Step 3: Cross multiply
    28,228.62x = 38,944.38 × 16,289.65
  4. Step 4: Simplify right side
    28,228.62x = 634,390,319.67
  5. Step 5: Solve for x
    x = 634,390,319.67/28,228.62
  6. Step 6: Final answer
    x = 22,473.30

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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.