Home / 22,935.12-31,669.14-18,686.88

Finding the Fourth Proportional to 22,935.12, 31,669.14 and 18,686.88

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Solution

The fourth proportional to 22,935.12, 31,669.14 and 18,686.88 is: 25,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,935.12 : 31,669.14 = 18,686.88 : x
  2. Step 2: Convert to fraction form
    22,935.12/31,669.14 = 18,686.88/x
  3. Step 3: Cross multiply
    22,935.12x = 31,669.14 × 18,686.88
  4. Step 4: Simplify right side
    22,935.12x = 591,797,418.88
  5. Step 5: Solve for x
    x = 591,797,418.88/22,935.12
  6. Step 6: Final answer
    x = 25,803.11

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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.