Home / 23,128.13-31,916.80-12,517.74

Finding the Fourth Proportional to 23,128.13, 31,916.80 and 12,517.74

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Solution

The fourth proportional to 23,128.13, 31,916.80 and 12,517.74 is: 17,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.13 : 31,916.80 = 12,517.74 : x
  2. Step 2: Convert to fraction form
    23,128.13/31,916.80 = 12,517.74/x
  3. Step 3: Cross multiply
    23,128.13x = 31,916.80 × 12,517.74
  4. Step 4: Simplify right side
    23,128.13x = 399,526,219.68
  5. Step 5: Solve for x
    x = 399,526,219.68/23,128.13
  6. Step 6: Final answer
    x = 17,274.47

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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.