Home / 20,818.03-31,242.44-15,285.73

Finding the Fourth Proportional to 20,818.03, 31,242.44 and 15,285.73

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Solution

The fourth proportional to 20,818.03, 31,242.44 and 15,285.73 is: 22,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818.03 : 31,242.44 = 15,285.73 : x
  2. Step 2: Convert to fraction form
    20,818.03/31,242.44 = 15,285.73/x
  3. Step 3: Cross multiply
    20,818.03x = 31,242.44 × 15,285.73
  4. Step 4: Simplify right side
    20,818.03x = 477,563,502.38
  5. Step 5: Solve for x
    x = 477,563,502.38/20,818.03
  6. Step 6: Final answer
    x = 22,939.90

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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.