Home / 40,665.40-60,969.30-15,695.80

Finding the Fourth Proportional to 40,665.40, 60,969.30 and 15,695.80

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Solution

The fourth proportional to 40,665.40, 60,969.30 and 15,695.80 is: 23,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,665.40 : 60,969.30 = 15,695.80 : x
  2. Step 2: Convert to fraction form
    40,665.40/60,969.30 = 15,695.80/x
  3. Step 3: Cross multiply
    40,665.40x = 60,969.30 × 15,695.80
  4. Step 4: Simplify right side
    40,665.40x = 956,961,938.94
  5. Step 5: Solve for x
    x = 956,961,938.94/40,665.40
  6. Step 6: Final answer
    x = 23,532.58

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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.