Home / 40,045.98-55,260.74-22,138.57

Finding the Fourth Proportional to 40,045.98, 55,260.74 and 22,138.57

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Solution

The fourth proportional to 40,045.98, 55,260.74 and 22,138.57 is: 30,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,045.98 : 55,260.74 = 22,138.57 : x
  2. Step 2: Convert to fraction form
    40,045.98/55,260.74 = 22,138.57/x
  3. Step 3: Cross multiply
    40,045.98x = 55,260.74 × 22,138.57
  4. Step 4: Simplify right side
    40,045.98x = 1,223,393,677.94
  5. Step 5: Solve for x
    x = 1,223,393,677.94/40,045.98
  6. Step 6: Final answer
    x = 30,549.73

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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.