Home / 47,805.12-65,957.73-28,672.92

Finding the Fourth Proportional to 47,805.12, 65,957.73 and 28,672.92

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Solution

The fourth proportional to 47,805.12, 65,957.73 and 28,672.92 is: 39,560.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,805.12 : 65,957.73 = 28,672.92 : x
  2. Step 2: Convert to fraction form
    47,805.12/65,957.73 = 28,672.92/x
  3. Step 3: Cross multiply
    47,805.12x = 65,957.73 × 28,672.92
  4. Step 4: Simplify right side
    47,805.12x = 1,891,200,715.67
  5. Step 5: Solve for x
    x = 1,891,200,715.67/47,805.12
  6. Step 6: Final answer
    x = 39,560.63

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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.