Home / 25,428.32-38,127.04-11,385.68

Finding the Fourth Proportional to 25,428.32, 38,127.04 and 11,385.68

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Solution

The fourth proportional to 25,428.32, 38,127.04 and 11,385.68 is: 17,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.32 : 38,127.04 = 11,385.68 : x
  2. Step 2: Convert to fraction form
    25,428.32/38,127.04 = 11,385.68/x
  3. Step 3: Cross multiply
    25,428.32x = 38,127.04 × 11,385.68
  4. Step 4: Simplify right side
    25,428.32x = 434,102,276.79
  5. Step 5: Solve for x
    x = 434,102,276.79/25,428.32
  6. Step 6: Final answer
    x = 17,071.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.