Home / 25,475.40-35,155.28-13,990.29

Finding the Fourth Proportional to 25,475.40, 35,155.28 and 13,990.29

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Solution

The fourth proportional to 25,475.40, 35,155.28 and 13,990.29 is: 19,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.40 : 35,155.28 = 13,990.29 : x
  2. Step 2: Convert to fraction form
    25,475.40/35,155.28 = 13,990.29/x
  3. Step 3: Cross multiply
    25,475.40x = 35,155.28 × 13,990.29
  4. Step 4: Simplify right side
    25,475.40x = 491,832,562.23
  5. Step 5: Solve for x
    x = 491,832,562.23/25,475.40
  6. Step 6: Final answer
    x = 19,306.18

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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.