Home / 23,043.66-31,800.85-12,972.47

Finding the Fourth Proportional to 23,043.66, 31,800.85 and 12,972.47

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Solution

The fourth proportional to 23,043.66, 31,800.85 and 12,972.47 is: 17,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,043.66 : 31,800.85 = 12,972.47 : x
  2. Step 2: Convert to fraction form
    23,043.66/31,800.85 = 12,972.47/x
  3. Step 3: Cross multiply
    23,043.66x = 31,800.85 × 12,972.47
  4. Step 4: Simplify right side
    23,043.66x = 412,535,498.85
  5. Step 5: Solve for x
    x = 412,535,498.85/23,043.66
  6. Step 6: Final answer
    x = 17,902.34

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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.