Home / 40,043.47-55,261.02-22,138.69

Finding the Fourth Proportional to 40,043.47, 55,261.02 and 22,138.69

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Solution

The fourth proportional to 40,043.47, 55,261.02 and 22,138.69 is: 30,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.47 : 55,261.02 = 22,138.69 : x
  2. Step 2: Convert to fraction form
    40,043.47/55,261.02 = 22,138.69/x
  3. Step 3: Cross multiply
    40,043.47x = 55,261.02 × 22,138.69
  4. Step 4: Simplify right side
    40,043.47x = 1,223,406,590.86
  5. Step 5: Solve for x
    x = 1,223,406,590.86/40,043.47
  6. Step 6: Final answer
    x = 30,551.96

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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.