Home / 47,129.04-65,010.96-28,255.20

Finding the Fourth Proportional to 47,129.04, 65,010.96 and 28,255.20

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Solution

The fourth proportional to 47,129.04, 65,010.96 and 28,255.20 is: 38,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,129.04 : 65,010.96 = 28,255.20 : x
  2. Step 2: Convert to fraction form
    47,129.04/65,010.96 = 28,255.20/x
  3. Step 3: Cross multiply
    47,129.04x = 65,010.96 × 28,255.20
  4. Step 4: Simplify right side
    47,129.04x = 1,836,897,676.99
  5. Step 5: Solve for x
    x = 1,836,897,676.99/47,129.04
  6. Step 6: Final answer
    x = 38,975.92

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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.