Home / 25,454.18-38,130.51-19,881.43

Finding the Fourth Proportional to 25,454.18, 38,130.51 and 19,881.43

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Solution

The fourth proportional to 25,454.18, 38,130.51 and 19,881.43 is: 29,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454.18 : 38,130.51 = 19,881.43 : x
  2. Step 2: Convert to fraction form
    25,454.18/38,130.51 = 19,881.43/x
  3. Step 3: Cross multiply
    25,454.18x = 38,130.51 × 19,881.43
  4. Step 4: Simplify right side
    25,454.18x = 758,088,874.78
  5. Step 5: Solve for x
    x = 758,088,874.78/25,454.18
  6. Step 6: Final answer
    x = 29,782.50

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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.