Home / 20,502.12-30,640.85-14,967.12

Finding the Fourth Proportional to 20,502.12, 30,640.85 and 14,967.12

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Solution

The fourth proportional to 20,502.12, 30,640.85 and 14,967.12 is: 22,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.12 : 30,640.85 = 14,967.12 : x
  2. Step 2: Convert to fraction form
    20,502.12/30,640.85 = 14,967.12/x
  3. Step 3: Cross multiply
    20,502.12x = 30,640.85 × 14,967.12
  4. Step 4: Simplify right side
    20,502.12x = 458,605,278.85
  5. Step 5: Solve for x
    x = 458,605,278.85/20,502.12
  6. Step 6: Final answer
    x = 22,368.68

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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.