Home / 21,055.92-31,569.24-10,660.56

Finding the Fourth Proportional to 21,055.92, 31,569.24 and 10,660.56

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Solution

The fourth proportional to 21,055.92, 31,569.24 and 10,660.56 is: 15,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.92 : 31,569.24 = 10,660.56 : x
  2. Step 2: Convert to fraction form
    21,055.92/31,569.24 = 10,660.56/x
  3. Step 3: Cross multiply
    21,055.92x = 31,569.24 × 10,660.56
  4. Step 4: Simplify right side
    21,055.92x = 336,545,777.17
  5. Step 5: Solve for x
    x = 336,545,777.17/21,055.92
  6. Step 6: Final answer
    x = 15,983.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.