Home / 39,837.55-54,976.71-21,932.91

Finding the Fourth Proportional to 39,837.55, 54,976.71 and 21,932.91

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Solution

The fourth proportional to 39,837.55, 54,976.71 and 21,932.91 is: 30,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,837.55 : 54,976.71 = 21,932.91 : x
  2. Step 2: Convert to fraction form
    39,837.55/54,976.71 = 21,932.91/x
  3. Step 3: Cross multiply
    39,837.55x = 54,976.71 × 21,932.91
  4. Step 4: Simplify right side
    39,837.55x = 1,205,799,232.53
  5. Step 5: Solve for x
    x = 1,205,799,232.53/39,837.55
  6. Step 6: Final answer
    x = 30,267.91

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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.