Home / 40,688.70-61,042.38-15,728.96

Finding the Fourth Proportional to 40,688.70, 61,042.38 and 15,728.96

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Solution

The fourth proportional to 40,688.70, 61,042.38 and 15,728.96 is: 23,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.70 : 61,042.38 = 15,728.96 : x
  2. Step 2: Convert to fraction form
    40,688.70/61,042.38 = 15,728.96/x
  3. Step 3: Cross multiply
    40,688.70x = 61,042.38 × 15,728.96
  4. Step 4: Simplify right side
    40,688.70x = 960,133,153.32
  5. Step 5: Solve for x
    x = 960,133,153.32/40,688.70
  6. Step 6: Final answer
    x = 23,597.05

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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.