Home / 23,043.95-31,800.18-12,972.17

Finding the Fourth Proportional to 23,043.95, 31,800.18 and 12,972.17

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Solution

The fourth proportional to 23,043.95, 31,800.18 and 12,972.17 is: 17,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,043.95 : 31,800.18 = 12,972.17 : x
  2. Step 2: Convert to fraction form
    23,043.95/31,800.18 = 12,972.17/x
  3. Step 3: Cross multiply
    23,043.95x = 31,800.18 × 12,972.17
  4. Step 4: Simplify right side
    23,043.95x = 412,517,181.99
  5. Step 5: Solve for x
    x = 412,517,181.99/23,043.95
  6. Step 6: Final answer
    x = 17,901.33

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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.