Home / 40,381.67-55,609.11-31,414.07

Finding the Fourth Proportional to 40,381.67, 55,609.11 and 31,414.07

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Solution

The fourth proportional to 40,381.67, 55,609.11 and 31,414.07 is: 43,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,381.67 : 55,609.11 = 31,414.07 : x
  2. Step 2: Convert to fraction form
    40,381.67/55,609.11 = 31,414.07/x
  3. Step 3: Cross multiply
    40,381.67x = 55,609.11 × 31,414.07
  4. Step 4: Simplify right side
    40,381.67x = 1,746,908,196.13
  5. Step 5: Solve for x
    x = 1,746,908,196.13/40,381.67
  6. Step 6: Final answer
    x = 43,259.93

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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.