Home / 40,013.60-55,219.35-22,109.02

Finding the Fourth Proportional to 40,013.60, 55,219.35 and 22,109.02

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Solution

The fourth proportional to 40,013.60, 55,219.35 and 22,109.02 is: 30,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,013.60 : 55,219.35 = 22,109.02 : x
  2. Step 2: Convert to fraction form
    40,013.60/55,219.35 = 22,109.02/x
  3. Step 3: Cross multiply
    40,013.60x = 55,219.35 × 22,109.02
  4. Step 4: Simplify right side
    40,013.60x = 1,220,845,713.54
  5. Step 5: Solve for x
    x = 1,220,845,713.54/40,013.60
  6. Step 6: Final answer
    x = 30,510.77

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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.