Home / 30,712.40-42,382.60-17,283.65

Finding the Fourth Proportional to 30,712.40, 42,382.60 and 17,283.65

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Solution

The fourth proportional to 30,712.40, 42,382.60 and 17,283.65 is: 23,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.40 : 42,382.60 = 17,283.65 : x
  2. Step 2: Convert to fraction form
    30,712.40/42,382.60 = 17,283.65/x
  3. Step 3: Cross multiply
    30,712.40x = 42,382.60 × 17,283.65
  4. Step 4: Simplify right side
    30,712.40x = 732,526,024.49
  5. Step 5: Solve for x
    x = 732,526,024.49/30,712.40
  6. Step 6: Final answer
    x = 23,851.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.