Home / 22,999.12-34,655.12-18,930.40

Finding the Fourth Proportional to 22,999.12, 34,655.12 and 18,930.40

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Solution

The fourth proportional to 22,999.12, 34,655.12 and 18,930.40 is: 28,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.12 : 34,655.12 = 18,930.40 : x
  2. Step 2: Convert to fraction form
    22,999.12/34,655.12 = 18,930.40/x
  3. Step 3: Cross multiply
    22,999.12x = 34,655.12 × 18,930.40
  4. Step 4: Simplify right side
    22,999.12x = 656,035,283.65
  5. Step 5: Solve for x
    x = 656,035,283.65/22,999.12
  6. Step 6: Final answer
    x = 28,524.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.