Home / 23,114.40-31,901.76-13,688.16

Finding the Fourth Proportional to 23,114.40, 31,901.76 and 13,688.16

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Solution

The fourth proportional to 23,114.40, 31,901.76 and 13,688.16 is: 18,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,114.40 : 31,901.76 = 13,688.16 : x
  2. Step 2: Convert to fraction form
    23,114.40/31,901.76 = 13,688.16/x
  3. Step 3: Cross multiply
    23,114.40x = 31,901.76 × 13,688.16
  4. Step 4: Simplify right side
    23,114.40x = 436,676,395.16
  5. Step 5: Solve for x
    x = 436,676,395.16/23,114.40
  6. Step 6: Final answer
    x = 18,891.96

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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.