Home / 25,780.32-38,635.92-11,898.72

Finding the Fourth Proportional to 25,780.32, 38,635.92 and 11,898.72

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Solution

The fourth proportional to 25,780.32, 38,635.92 and 11,898.72 is: 17,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.32 : 38,635.92 = 11,898.72 : x
  2. Step 2: Convert to fraction form
    25,780.32/38,635.92 = 11,898.72/x
  3. Step 3: Cross multiply
    25,780.32x = 38,635.92 × 11,898.72
  4. Step 4: Simplify right side
    25,780.32x = 459,717,994.02
  5. Step 5: Solve for x
    x = 459,717,994.02/25,780.32
  6. Step 6: Final answer
    x = 17,832.13

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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.