Home / 23,120.39-31,906.13-12,510.02

Finding the Fourth Proportional to 23,120.39, 31,906.13 and 12,510.02

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Solution

The fourth proportional to 23,120.39, 31,906.13 and 12,510.02 is: 17,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.39 : 31,906.13 = 12,510.02 : x
  2. Step 2: Convert to fraction form
    23,120.39/31,906.13 = 12,510.02/x
  3. Step 3: Cross multiply
    23,120.39x = 31,906.13 × 12,510.02
  4. Step 4: Simplify right side
    23,120.39x = 399,146,102.34
  5. Step 5: Solve for x
    x = 399,146,102.34/23,120.39
  6. Step 6: Final answer
    x = 17,263.82

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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.