Home / 40,013.12-55,220.70-22,108.13

Finding the Fourth Proportional to 40,013.12, 55,220.70 and 22,108.13

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Solution

The fourth proportional to 40,013.12, 55,220.70 and 22,108.13 is: 30,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,013.12 : 55,220.70 = 22,108.13 : x
  2. Step 2: Convert to fraction form
    40,013.12/55,220.70 = 22,108.13/x
  3. Step 3: Cross multiply
    40,013.12x = 55,220.70 × 22,108.13
  4. Step 4: Simplify right side
    40,013.12x = 1,220,826,138.19
  5. Step 5: Solve for x
    x = 1,220,826,138.19/40,013.12
  6. Step 6: Final answer
    x = 30,510.65

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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.