Home / 22,565.05-31,130.12-13,607.46

Finding the Fourth Proportional to 22,565.05, 31,130.12 and 13,607.46

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Solution

The fourth proportional to 22,565.05, 31,130.12 and 13,607.46 is: 18,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,565.05 : 31,130.12 = 13,607.46 : x
  2. Step 2: Convert to fraction form
    22,565.05/31,130.12 = 13,607.46/x
  3. Step 3: Cross multiply
    22,565.05x = 31,130.12 × 13,607.46
  4. Step 4: Simplify right side
    22,565.05x = 423,601,896.71
  5. Step 5: Solve for x
    x = 423,601,896.71/22,565.05
  6. Step 6: Final answer
    x = 18,772.48

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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.