Home / 47,724.60-65,849.50-28,861.32

Finding the Fourth Proportional to 47,724.60, 65,849.50 and 28,861.32

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Solution

The fourth proportional to 47,724.60, 65,849.50 and 28,861.32 is: 39,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,724.60 : 65,849.50 = 28,861.32 : x
  2. Step 2: Convert to fraction form
    47,724.60/65,849.50 = 28,861.32/x
  3. Step 3: Cross multiply
    47,724.60x = 65,849.50 × 28,861.32
  4. Step 4: Simplify right side
    47,724.60x = 1,900,503,491.34
  5. Step 5: Solve for x
    x = 1,900,503,491.34/47,724.60
  6. Step 6: Final answer
    x = 39,822.30

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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.