Home / 40,051.28-55,269.20-22,145.12

Finding the Fourth Proportional to 40,051.28, 55,269.20 and 22,145.12

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Solution

The fourth proportional to 40,051.28, 55,269.20 and 22,145.12 is: 30,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,051.28 : 55,269.20 = 22,145.12 : x
  2. Step 2: Convert to fraction form
    40,051.28/55,269.20 = 22,145.12/x
  3. Step 3: Cross multiply
    40,051.28x = 55,269.20 × 22,145.12
  4. Step 4: Simplify right side
    40,051.28x = 1,223,943,066.30
  5. Step 5: Solve for x
    x = 1,223,943,066.30/40,051.28
  6. Step 6: Final answer
    x = 30,559.40

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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.