Home / 15,614.25-23,445.13-13,638.75

Finding the Fourth Proportional to 15,614.25, 23,445.13 and 13,638.75

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Solution

The fourth proportional to 15,614.25, 23,445.13 and 13,638.75 is: 20,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.25 : 23,445.13 = 13,638.75 : x
  2. Step 2: Convert to fraction form
    15,614.25/23,445.13 = 13,638.75/x
  3. Step 3: Cross multiply
    15,614.25x = 23,445.13 × 13,638.75
  4. Step 4: Simplify right side
    15,614.25x = 319,762,170.34
  5. Step 5: Solve for x
    x = 319,762,170.34/15,614.25
  6. Step 6: Final answer
    x = 20,478.87

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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.