Home / 21,096.08-31,586.46-15,178.86

Finding the Fourth Proportional to 21,096.08, 31,586.46 and 15,178.86

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Solution

The fourth proportional to 21,096.08, 31,586.46 and 15,178.86 is: 22,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.08 : 31,586.46 = 15,178.86 : x
  2. Step 2: Convert to fraction form
    21,096.08/31,586.46 = 15,178.86/x
  3. Step 3: Cross multiply
    21,096.08x = 31,586.46 × 15,178.86
  4. Step 4: Simplify right side
    21,096.08x = 479,446,454.24
  5. Step 5: Solve for x
    x = 479,446,454.24/21,096.08
  6. Step 6: Final answer
    x = 22,726.80

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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.