Home / 21,901.60-30,227.34-12,471.04

Finding the Fourth Proportional to 21,901.60, 30,227.34 and 12,471.04

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Solution

The fourth proportional to 21,901.60, 30,227.34 and 12,471.04 is: 17,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.60 : 30,227.34 = 12,471.04 : x
  2. Step 2: Convert to fraction form
    21,901.60/30,227.34 = 12,471.04/x
  3. Step 3: Cross multiply
    21,901.60x = 30,227.34 × 12,471.04
  4. Step 4: Simplify right side
    21,901.60x = 376,966,366.23
  5. Step 5: Solve for x
    x = 376,966,366.23/21,901.60
  6. Step 6: Final answer
    x = 17,211.82

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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.