Home / 25,357.40-34,981.43-16,407.79

Finding the Fourth Proportional to 25,357.40, 34,981.43 and 16,407.79

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Solution

The fourth proportional to 25,357.40, 34,981.43 and 16,407.79 is: 22,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,357.40 : 34,981.43 = 16,407.79 : x
  2. Step 2: Convert to fraction form
    25,357.40/34,981.43 = 16,407.79/x
  3. Step 3: Cross multiply
    25,357.40x = 34,981.43 × 16,407.79
  4. Step 4: Simplify right side
    25,357.40x = 573,967,787.85
  5. Step 5: Solve for x
    x = 573,967,787.85/25,357.40
  6. Step 6: Final answer
    x = 22,635.12

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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.