Home / 47,979.48-71,951.94-20,279.64

Finding the Fourth Proportional to 47,979.48, 71,951.94 and 20,279.64

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Solution

The fourth proportional to 47,979.48, 71,951.94 and 20,279.64 is: 30,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.48 : 71,951.94 = 20,279.64 : x
  2. Step 2: Convert to fraction form
    47,979.48/71,951.94 = 20,279.64/x
  3. Step 3: Cross multiply
    47,979.48x = 71,951.94 × 20,279.64
  4. Step 4: Simplify right side
    47,979.48x = 1,459,159,440.50
  5. Step 5: Solve for x
    x = 1,459,159,440.50/47,979.48
  6. Step 6: Final answer
    x = 30,412.16

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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.