Home / 42,311.35-63,470.20-14,231.49

Finding the Fourth Proportional to 42,311.35, 63,470.20 and 14,231.49

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Solution

The fourth proportional to 42,311.35, 63,470.20 and 14,231.49 is: 21,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,311.35 : 63,470.20 = 14,231.49 : x
  2. Step 2: Convert to fraction form
    42,311.35/63,470.20 = 14,231.49/x
  3. Step 3: Cross multiply
    42,311.35x = 63,470.20 × 14,231.49
  4. Step 4: Simplify right side
    42,311.35x = 903,275,516.60
  5. Step 5: Solve for x
    x = 903,275,516.60/42,311.35
  6. Step 6: Final answer
    x = 21,348.30

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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.