Home / 28,117.15-38,805.07-16,180.23

Finding the Fourth Proportional to 28,117.15, 38,805.07 and 16,180.23

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Solution

The fourth proportional to 28,117.15, 38,805.07 and 16,180.23 is: 22,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.15 : 38,805.07 = 16,180.23 : x
  2. Step 2: Convert to fraction form
    28,117.15/38,805.07 = 16,180.23/x
  3. Step 3: Cross multiply
    28,117.15x = 38,805.07 × 16,180.23
  4. Step 4: Simplify right side
    28,117.15x = 627,874,957.77
  5. Step 5: Solve for x
    x = 627,874,957.77/28,117.15
  6. Step 6: Final answer
    x = 22,330.68

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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.