Home / 22,785.18-31,443.75-13,354.62

Finding the Fourth Proportional to 22,785.18, 31,443.75 and 13,354.62

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Solution

The fourth proportional to 22,785.18, 31,443.75 and 13,354.62 is: 18,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.18 : 31,443.75 = 13,354.62 : x
  2. Step 2: Convert to fraction form
    22,785.18/31,443.75 = 13,354.62/x
  3. Step 3: Cross multiply
    22,785.18x = 31,443.75 × 13,354.62
  4. Step 4: Simplify right side
    22,785.18x = 419,919,332.63
  5. Step 5: Solve for x
    x = 419,919,332.63/22,785.18
  6. Step 6: Final answer
    x = 18,429.49

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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.