Home / 39,449.08-54,437.58-21,543.80

Finding the Fourth Proportional to 39,449.08, 54,437.58 and 21,543.80

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Solution

The fourth proportional to 39,449.08, 54,437.58 and 21,543.80 is: 29,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.08 : 54,437.58 = 21,543.80 : x
  2. Step 2: Convert to fraction form
    39,449.08/54,437.58 = 21,543.80/x
  3. Step 3: Cross multiply
    39,449.08x = 54,437.58 × 21,543.80
  4. Step 4: Simplify right side
    39,449.08x = 1,172,792,336.00
  5. Step 5: Solve for x
    x = 1,172,792,336.00/39,449.08
  6. Step 6: Final answer
    x = 29,729.27

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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.