Home / 25,395.28-38,117.49-12,256.90

Finding the Fourth Proportional to 25,395.28, 38,117.49 and 12,256.90

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Solution

The fourth proportional to 25,395.28, 38,117.49 and 12,256.90 is: 18,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,395.28 : 38,117.49 = 12,256.90 : x
  2. Step 2: Convert to fraction form
    25,395.28/38,117.49 = 12,256.90/x
  3. Step 3: Cross multiply
    25,395.28x = 38,117.49 × 12,256.90
  4. Step 4: Simplify right side
    25,395.28x = 467,202,263.18
  5. Step 5: Solve for x
    x = 467,202,263.18/25,395.28
  6. Step 6: Final answer
    x = 18,397.21

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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.