Home / 39,988.54-55,176.96-22,988.80

Finding the Fourth Proportional to 39,988.54, 55,176.96 and 22,988.80

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Solution

The fourth proportional to 39,988.54, 55,176.96 and 22,988.80 is: 31,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988.54 : 55,176.96 = 22,988.80 : x
  2. Step 2: Convert to fraction form
    39,988.54/55,176.96 = 22,988.80/x
  3. Step 3: Cross multiply
    39,988.54x = 55,176.96 × 22,988.80
  4. Step 4: Simplify right side
    39,988.54x = 1,268,452,098.05
  5. Step 5: Solve for x
    x = 1,268,452,098.05/39,988.54
  6. Step 6: Final answer
    x = 31,720.39

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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.