Home / 39,448.70-54,437.61-21,543.68

Finding the Fourth Proportional to 39,448.70, 54,437.61 and 21,543.68

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Solution

The fourth proportional to 39,448.70, 54,437.61 and 21,543.68 is: 29,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.70 : 54,437.61 = 21,543.68 : x
  2. Step 2: Convert to fraction form
    39,448.70/54,437.61 = 21,543.68/x
  3. Step 3: Cross multiply
    39,448.70x = 54,437.61 × 21,543.68
  4. Step 4: Simplify right side
    39,448.70x = 1,172,786,449.80
  5. Step 5: Solve for x
    x = 1,172,786,449.80/39,448.70
  6. Step 6: Final answer
    x = 29,729.41

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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.