Home / 23,116.98-31,901.20-12,506.40

Finding the Fourth Proportional to 23,116.98, 31,901.20 and 12,506.40

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Solution

The fourth proportional to 23,116.98, 31,901.20 and 12,506.40 is: 17,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,116.98 : 31,901.20 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    23,116.98/31,901.20 = 12,506.40/x
  3. Step 3: Cross multiply
    23,116.98x = 31,901.20 × 12,506.40
  4. Step 4: Simplify right side
    23,116.98x = 398,969,167.68
  5. Step 5: Solve for x
    x = 398,969,167.68/23,116.98
  6. Step 6: Final answer
    x = 17,258.71

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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.