Home / 30,938.75-42,696.11-17,510

Finding the Fourth Proportional to 30,938.75, 42,696.11 and 17,510

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Solution

The fourth proportional to 30,938.75, 42,696.11 and 17,510 is: 24,164.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.75 : 42,696.11 = 17,510 : x
  2. Step 2: Convert to fraction form
    30,938.75/42,696.11 = 17,510/x
  3. Step 3: Cross multiply
    30,938.75x = 42,696.11 × 17,510
  4. Step 4: Simplify right side
    30,938.75x = 747,608,886.10
  5. Step 5: Solve for x
    x = 747,608,886.10/30,938.75
  6. Step 6: Final answer
    x = 24,164.16

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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.