Home / 40,143.42-55,397.88-22,239.54

Finding the Fourth Proportional to 40,143.42, 55,397.88 and 22,239.54

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Solution

The fourth proportional to 40,143.42, 55,397.88 and 22,239.54 is: 30,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.42 : 55,397.88 = 22,239.54 : x
  2. Step 2: Convert to fraction form
    40,143.42/55,397.88 = 22,239.54/x
  3. Step 3: Cross multiply
    40,143.42x = 55,397.88 × 22,239.54
  4. Step 4: Simplify right side
    40,143.42x = 1,232,023,368.18
  5. Step 5: Solve for x
    x = 1,232,023,368.18/40,143.42
  6. Step 6: Final answer
    x = 30,690.54

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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.