Home / 39,802.79-59,694.61-11,715.21

Finding the Fourth Proportional to 39,802.79, 59,694.61 and 11,715.21

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Solution

The fourth proportional to 39,802.79, 59,694.61 and 11,715.21 is: 17,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.79 : 59,694.61 = 11,715.21 : x
  2. Step 2: Convert to fraction form
    39,802.79/59,694.61 = 11,715.21/x
  3. Step 3: Cross multiply
    39,802.79x = 59,694.61 × 11,715.21
  4. Step 4: Simplify right side
    39,802.79x = 699,334,862.73
  5. Step 5: Solve for x
    x = 699,334,862.73/39,802.79
  6. Step 6: Final answer
    x = 17,570.00

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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.