Home / 31,753.95-43,838.38-21,696.99

Finding the Fourth Proportional to 31,753.95, 43,838.38 and 21,696.99

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Solution

The fourth proportional to 31,753.95, 43,838.38 and 21,696.99 is: 29,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.95 : 43,838.38 = 21,696.99 : x
  2. Step 2: Convert to fraction form
    31,753.95/43,838.38 = 21,696.99/x
  3. Step 3: Cross multiply
    31,753.95x = 43,838.38 × 21,696.99
  4. Step 4: Simplify right side
    31,753.95x = 951,160,892.48
  5. Step 5: Solve for x
    x = 951,160,892.48/31,753.95
  6. Step 6: Final answer
    x = 29,954.10

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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.