Home / 25,890.23-38,864.17-13,406.92

Finding the Fourth Proportional to 25,890.23, 38,864.17 and 13,406.92

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Solution

The fourth proportional to 25,890.23, 38,864.17 and 13,406.92 is: 20,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.23 : 38,864.17 = 13,406.92 : x
  2. Step 2: Convert to fraction form
    25,890.23/38,864.17 = 13,406.92/x
  3. Step 3: Cross multiply
    25,890.23x = 38,864.17 × 13,406.92
  4. Step 4: Simplify right side
    25,890.23x = 521,048,737.65
  5. Step 5: Solve for x
    x = 521,048,737.65/25,890.23
  6. Step 6: Final answer
    x = 20,125.30

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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.