Home / 40,143.04-55,400.52-22,239.70

Finding the Fourth Proportional to 40,143.04, 55,400.52 and 22,239.70

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Solution

The fourth proportional to 40,143.04, 55,400.52 and 22,239.70 is: 30,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.04 : 55,400.52 = 22,239.70 : x
  2. Step 2: Convert to fraction form
    40,143.04/55,400.52 = 22,239.70/x
  3. Step 3: Cross multiply
    40,143.04x = 55,400.52 × 22,239.70
  4. Step 4: Simplify right side
    40,143.04x = 1,232,090,944.64
  5. Step 5: Solve for x
    x = 1,232,090,944.64/40,143.04
  6. Step 6: Final answer
    x = 30,692.52

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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.