Home / 42,019.72-57,986.44-22,899.65

Finding the Fourth Proportional to 42,019.72, 57,986.44 and 22,899.65

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Solution

The fourth proportional to 42,019.72, 57,986.44 and 22,899.65 is: 31,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.72 : 57,986.44 = 22,899.65 : x
  2. Step 2: Convert to fraction form
    42,019.72/57,986.44 = 22,899.65/x
  3. Step 3: Cross multiply
    42,019.72x = 57,986.44 × 22,899.65
  4. Step 4: Simplify right side
    42,019.72x = 1,327,869,180.75
  5. Step 5: Solve for x
    x = 1,327,869,180.75/42,019.72
  6. Step 6: Final answer
    x = 31,601.10

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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.