Home / 39,448.22-54,439-21,543.44

Finding the Fourth Proportional to 39,448.22, 54,439 and 21,543.44

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Solution

The fourth proportional to 39,448.22, 54,439 and 21,543.44 is: 29,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.22 : 54,439 = 21,543.44 : x
  2. Step 2: Convert to fraction form
    39,448.22/54,439 = 21,543.44/x
  3. Step 3: Cross multiply
    39,448.22x = 54,439 × 21,543.44
  4. Step 4: Simplify right side
    39,448.22x = 1,172,803,330.16
  5. Step 5: Solve for x
    x = 1,172,803,330.16/39,448.22
  6. Step 6: Final answer
    x = 29,730.20

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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.