Home / 47,976.76-71,965.59-18,387.55

Finding the Fourth Proportional to 47,976.76, 71,965.59 and 18,387.55

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Solution

The fourth proportional to 47,976.76, 71,965.59 and 18,387.55 is: 27,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,976.76 : 71,965.59 = 18,387.55 : x
  2. Step 2: Convert to fraction form
    47,976.76/71,965.59 = 18,387.55/x
  3. Step 3: Cross multiply
    47,976.76x = 71,965.59 × 18,387.55
  4. Step 4: Simplify right side
    47,976.76x = 1,323,270,884.40
  5. Step 5: Solve for x
    x = 1,323,270,884.40/47,976.76
  6. Step 6: Final answer
    x = 27,581.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.