Home / 40,731.95-61,130.94-21,016.15

Finding the Fourth Proportional to 40,731.95, 61,130.94 and 21,016.15

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Solution

The fourth proportional to 40,731.95, 61,130.94 and 21,016.15 is: 31,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,731.95 : 61,130.94 = 21,016.15 : x
  2. Step 2: Convert to fraction form
    40,731.95/61,130.94 = 21,016.15/x
  3. Step 3: Cross multiply
    40,731.95x = 61,130.94 × 21,016.15
  4. Step 4: Simplify right side
    40,731.95x = 1,284,736,773.04
  5. Step 5: Solve for x
    x = 1,284,736,773.04/40,731.95
  6. Step 6: Final answer
    x = 31,541.25

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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.