Home / 28,285.32-39,033.96-17,681.20

Finding the Fourth Proportional to 28,285.32, 39,033.96 and 17,681.20

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Solution

The fourth proportional to 28,285.32, 39,033.96 and 17,681.20 is: 24,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.32 : 39,033.96 = 17,681.20 : x
  2. Step 2: Convert to fraction form
    28,285.32/39,033.96 = 17,681.20/x
  3. Step 3: Cross multiply
    28,285.32x = 39,033.96 × 17,681.20
  4. Step 4: Simplify right side
    28,285.32x = 690,167,253.55
  5. Step 5: Solve for x
    x = 690,167,253.55/28,285.32
  6. Step 6: Final answer
    x = 24,400.19

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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.