Home / 28,561.92-39,432.96-22,617.60

Finding the Fourth Proportional to 28,561.92, 39,432.96 and 22,617.60

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Solution

The fourth proportional to 28,561.92, 39,432.96 and 22,617.60 is: 31,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.92 : 39,432.96 = 22,617.60 : x
  2. Step 2: Convert to fraction form
    28,561.92/39,432.96 = 22,617.60/x
  3. Step 3: Cross multiply
    28,561.92x = 39,432.96 × 22,617.60
  4. Step 4: Simplify right side
    28,561.92x = 891,878,916.10
  5. Step 5: Solve for x
    x = 891,878,916.10/28,561.92
  6. Step 6: Final answer
    x = 31,226.15

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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.