Home / 40,085.88-55,318.02-22,181.28

Finding the Fourth Proportional to 40,085.88, 55,318.02 and 22,181.28

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Solution

The fourth proportional to 40,085.88, 55,318.02 and 22,181.28 is: 30,609.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,085.88 : 55,318.02 = 22,181.28 : x
  2. Step 2: Convert to fraction form
    40,085.88/55,318.02 = 22,181.28/x
  3. Step 3: Cross multiply
    40,085.88x = 55,318.02 × 22,181.28
  4. Step 4: Simplify right side
    40,085.88x = 1,227,024,490.67
  5. Step 5: Solve for x
    x = 1,227,024,490.67/40,085.88
  6. Step 6: Final answer
    x = 30,609.89

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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.