Home / 28,600.53-39,445.33-20,130.69

Finding the Fourth Proportional to 28,600.53, 39,445.33 and 20,130.69

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Solution

The fourth proportional to 28,600.53, 39,445.33 and 20,130.69 is: 27,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.53 : 39,445.33 = 20,130.69 : x
  2. Step 2: Convert to fraction form
    28,600.53/39,445.33 = 20,130.69/x
  3. Step 3: Cross multiply
    28,600.53x = 39,445.33 × 20,130.69
  4. Step 4: Simplify right side
    28,600.53x = 794,061,412.30
  5. Step 5: Solve for x
    x = 794,061,412.30/28,600.53
  6. Step 6: Final answer
    x = 27,763.88

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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.