Home / 40,145.04-55,403.28-22,241.70

Finding the Fourth Proportional to 40,145.04, 55,403.28 and 22,241.70

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Solution

The fourth proportional to 40,145.04, 55,403.28 and 22,241.70 is: 30,695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.04 : 55,403.28 = 22,241.70 : x
  2. Step 2: Convert to fraction form
    40,145.04/55,403.28 = 22,241.70/x
  3. Step 3: Cross multiply
    40,145.04x = 55,403.28 × 22,241.70
  4. Step 4: Simplify right side
    40,145.04x = 1,232,263,132.78
  5. Step 5: Solve for x
    x = 1,232,263,132.78/40,145.04
  6. Step 6: Final answer
    x = 30,695.28

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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.