Home / 25,355.52-34,982-15,280.16

Finding the Fourth Proportional to 25,355.52, 34,982 and 15,280.16

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Solution

The fourth proportional to 25,355.52, 34,982 and 15,280.16 is: 21,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,355.52 : 34,982 = 15,280.16 : x
  2. Step 2: Convert to fraction form
    25,355.52/34,982 = 15,280.16/x
  3. Step 3: Cross multiply
    25,355.52x = 34,982 × 15,280.16
  4. Step 4: Simplify right side
    25,355.52x = 534,530,557.12
  5. Step 5: Solve for x
    x = 534,530,557.12/25,355.52
  6. Step 6: Final answer
    x = 21,081.43

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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.