Home / 23,001.05-31,739.85-12,931.02

Finding the Fourth Proportional to 23,001.05, 31,739.85 and 12,931.02

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Solution

The fourth proportional to 23,001.05, 31,739.85 and 12,931.02 is: 17,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,001.05 : 31,739.85 = 12,931.02 : x
  2. Step 2: Convert to fraction form
    23,001.05/31,739.85 = 12,931.02/x
  3. Step 3: Cross multiply
    23,001.05x = 31,739.85 × 12,931.02
  4. Step 4: Simplify right side
    23,001.05x = 410,428,635.15
  5. Step 5: Solve for x
    x = 410,428,635.15/23,001.05
  6. Step 6: Final answer
    x = 17,843.91

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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.