Home / 31,891.60-44,016.50-21,117.48

Finding the Fourth Proportional to 31,891.60, 44,016.50 and 21,117.48

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Solution

The fourth proportional to 31,891.60, 44,016.50 and 21,117.48 is: 29,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,891.60 : 44,016.50 = 21,117.48 : x
  2. Step 2: Convert to fraction form
    31,891.60/44,016.50 = 21,117.48/x
  3. Step 3: Cross multiply
    31,891.60x = 44,016.50 × 21,117.48
  4. Step 4: Simplify right side
    31,891.60x = 929,517,558.42
  5. Step 5: Solve for x
    x = 929,517,558.42/31,891.60
  6. Step 6: Final answer
    x = 29,146.16

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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.