Home / 47,395.68-65,408.76-28,538.88

Finding the Fourth Proportional to 47,395.68, 65,408.76 and 28,538.88

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Solution

The fourth proportional to 47,395.68, 65,408.76 and 28,538.88 is: 39,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,395.68 : 65,408.76 = 28,538.88 : x
  2. Step 2: Convert to fraction form
    47,395.68/65,408.76 = 28,538.88/x
  3. Step 3: Cross multiply
    47,395.68x = 65,408.76 × 28,538.88
  4. Step 4: Simplify right side
    47,395.68x = 1,866,692,752.59
  5. Step 5: Solve for x
    x = 1,866,692,752.59/47,395.68
  6. Step 6: Final answer
    x = 39,385.29

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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.