Home / 28,287.32-39,036.72-17,683.20

Finding the Fourth Proportional to 28,287.32, 39,036.72 and 17,683.20

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Solution

The fourth proportional to 28,287.32, 39,036.72 and 17,683.20 is: 24,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.32 : 39,036.72 = 17,683.20 : x
  2. Step 2: Convert to fraction form
    28,287.32/39,036.72 = 17,683.20/x
  3. Step 3: Cross multiply
    28,287.32x = 39,036.72 × 17,683.20
  4. Step 4: Simplify right side
    28,287.32x = 690,294,127.10
  5. Step 5: Solve for x
    x = 690,294,127.10/28,287.32
  6. Step 6: Final answer
    x = 24,402.95

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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.