Home / 42,122.86-58,115.53-27,789.81

Finding the Fourth Proportional to 42,122.86, 58,115.53 and 27,789.81

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Solution

The fourth proportional to 42,122.86, 58,115.53 and 27,789.81 is: 38,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.86 : 58,115.53 = 27,789.81 : x
  2. Step 2: Convert to fraction form
    42,122.86/58,115.53 = 27,789.81/x
  3. Step 3: Cross multiply
    42,122.86x = 58,115.53 × 27,789.81
  4. Step 4: Simplify right side
    42,122.86x = 1,615,019,536.75
  5. Step 5: Solve for x
    x = 1,615,019,536.75/42,122.86
  6. Step 6: Final answer
    x = 38,340.69

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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.