Home / 21,658.06-29,879.22-14,586.76

Finding the Fourth Proportional to 21,658.06, 29,879.22 and 14,586.76

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Solution

The fourth proportional to 21,658.06, 29,879.22 and 14,586.76 is: 20,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.06 : 29,879.22 = 14,586.76 : x
  2. Step 2: Convert to fraction form
    21,658.06/29,879.22 = 14,586.76/x
  3. Step 3: Cross multiply
    21,658.06x = 29,879.22 × 14,586.76
  4. Step 4: Simplify right side
    21,658.06x = 435,841,011.13
  5. Step 5: Solve for x
    x = 435,841,011.13/21,658.06
  6. Step 6: Final answer
    x = 20,123.73

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1.5x scale

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.