Home / 31,979.01-47,965.08-9,792.36

Finding the Fourth Proportional to 31,979.01, 47,965.08 and 9,792.36

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Solution

The fourth proportional to 31,979.01, 47,965.08 and 9,792.36 is: 14,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.01 : 47,965.08 = 9,792.36 : x
  2. Step 2: Convert to fraction form
    31,979.01/47,965.08 = 9,792.36/x
  3. Step 3: Cross multiply
    31,979.01x = 47,965.08 × 9,792.36
  4. Step 4: Simplify right side
    31,979.01x = 469,691,330.79
  5. Step 5: Solve for x
    x = 469,691,330.79/31,979.01
  6. Step 6: Final answer
    x = 14,687.49

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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.