Home / 25,605.28-38,384.88-13,255.84

Finding the Fourth Proportional to 25,605.28, 38,384.88 and 13,255.84

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Solution

The fourth proportional to 25,605.28, 38,384.88 and 13,255.84 is: 19,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,605.28 : 38,384.88 = 13,255.84 : x
  2. Step 2: Convert to fraction form
    25,605.28/38,384.88 = 13,255.84/x
  3. Step 3: Cross multiply
    25,605.28x = 38,384.88 × 13,255.84
  4. Step 4: Simplify right side
    25,605.28x = 508,823,827.70
  5. Step 5: Solve for x
    x = 508,823,827.70/25,605.28
  6. Step 6: Final answer
    x = 19,871.83

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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.