Home / 22,785.67-31,435.81-13,350.79

Finding the Fourth Proportional to 22,785.67, 31,435.81 and 13,350.79

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Solution

The fourth proportional to 22,785.67, 31,435.81 and 13,350.79 is: 18,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.67 : 31,435.81 = 13,350.79 : x
  2. Step 2: Convert to fraction form
    22,785.67/31,435.81 = 13,350.79/x
  3. Step 3: Cross multiply
    22,785.67x = 31,435.81 × 13,350.79
  4. Step 4: Simplify right side
    22,785.67x = 419,692,897.79
  5. Step 5: Solve for x
    x = 419,692,897.79/22,785.67
  6. Step 6: Final answer
    x = 18,419.16

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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.