Home / 20,474.23-28,244.41-12,502.66

Finding the Fourth Proportional to 20,474.23, 28,244.41 and 12,502.66

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Solution

The fourth proportional to 20,474.23, 28,244.41 and 12,502.66 is: 17,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.23 : 28,244.41 = 12,502.66 : x
  2. Step 2: Convert to fraction form
    20,474.23/28,244.41 = 12,502.66/x
  3. Step 3: Cross multiply
    20,474.23x = 28,244.41 × 12,502.66
  4. Step 4: Simplify right side
    20,474.23x = 353,130,255.13
  5. Step 5: Solve for x
    x = 353,130,255.13/20,474.23
  6. Step 6: Final answer
    x = 17,247.55

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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.