Home / 22,601.15-31,189.55-13,646.90

Finding the Fourth Proportional to 22,601.15, 31,189.55 and 13,646.90

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Solution

The fourth proportional to 22,601.15, 31,189.55 and 13,646.90 is: 18,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,601.15 : 31,189.55 = 13,646.90 : x
  2. Step 2: Convert to fraction form
    22,601.15/31,189.55 = 13,646.90/x
  3. Step 3: Cross multiply
    22,601.15x = 31,189.55 × 13,646.90
  4. Step 4: Simplify right side
    22,601.15x = 425,640,445.71
  5. Step 5: Solve for x
    x = 425,640,445.71/22,601.15
  6. Step 6: Final answer
    x = 18,832.69

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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.