Home / 40,718.18-60,994.12-20,955.22

Finding the Fourth Proportional to 40,718.18, 60,994.12 and 20,955.22

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Solution

The fourth proportional to 40,718.18, 60,994.12 and 20,955.22 is: 31,390.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,718.18 : 60,994.12 = 20,955.22 : x
  2. Step 2: Convert to fraction form
    40,718.18/60,994.12 = 20,955.22/x
  3. Step 3: Cross multiply
    40,718.18x = 60,994.12 × 20,955.22
  4. Step 4: Simplify right side
    40,718.18x = 1,278,145,138.23
  5. Step 5: Solve for x
    x = 1,278,145,138.23/40,718.18
  6. Step 6: Final answer
    x = 31,390.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.