Home / 40,988.73-61,485.31-12,910.99

Finding the Fourth Proportional to 40,988.73, 61,485.31 and 12,910.99

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Solution

The fourth proportional to 40,988.73, 61,485.31 and 12,910.99 is: 19,367.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,988.73 : 61,485.31 = 12,910.99 : x
  2. Step 2: Convert to fraction form
    40,988.73/61,485.31 = 12,910.99/x
  3. Step 3: Cross multiply
    40,988.73x = 61,485.31 × 12,910.99
  4. Step 4: Simplify right side
    40,988.73x = 793,836,036.57
  5. Step 5: Solve for x
    x = 793,836,036.57/40,988.73
  6. Step 6: Final answer
    x = 19,367.18

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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.