Home / 20,502.20-30,640.97-14,967.20

Finding the Fourth Proportional to 20,502.20, 30,640.97 and 14,967.20

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Solution

The fourth proportional to 20,502.20, 30,640.97 and 14,967.20 is: 22,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.20 : 30,640.97 = 14,967.20 : x
  2. Step 2: Convert to fraction form
    20,502.20/30,640.97 = 14,967.20/x
  3. Step 3: Cross multiply
    20,502.20x = 30,640.97 × 14,967.20
  4. Step 4: Simplify right side
    20,502.20x = 458,609,298.14
  5. Step 5: Solve for x
    x = 458,609,298.14/20,502.20
  6. Step 6: Final answer
    x = 22,368.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.