Home / 25,755.42-38,638.92-13,908.93

Finding the Fourth Proportional to 25,755.42, 38,638.92 and 13,908.93

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Solution

The fourth proportional to 25,755.42, 38,638.92 and 13,908.93 is: 20,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,755.42 : 38,638.92 = 13,908.93 : x
  2. Step 2: Convert to fraction form
    25,755.42/38,638.92 = 13,908.93/x
  3. Step 3: Cross multiply
    25,755.42x = 38,638.92 × 13,908.93
  4. Step 4: Simplify right side
    25,755.42x = 537,426,033.56
  5. Step 5: Solve for x
    x = 537,426,033.56/25,755.42
  6. Step 6: Final answer
    x = 20,866.52

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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.