Home / 25,116.16-34,660.80-13,938.88

Finding the Fourth Proportional to 25,116.16, 34,660.80 and 13,938.88

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Solution

The fourth proportional to 25,116.16, 34,660.80 and 13,938.88 is: 19,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,116.16 : 34,660.80 = 13,938.88 : x
  2. Step 2: Convert to fraction form
    25,116.16/34,660.80 = 13,938.88/x
  3. Step 3: Cross multiply
    25,116.16x = 34,660.80 × 13,938.88
  4. Step 4: Simplify right side
    25,116.16x = 483,132,731.90
  5. Step 5: Solve for x
    x = 483,132,731.90/25,116.16
  6. Step 6: Final answer
    x = 19,235.93

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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.