Home / 40,431.69-60,666.84-18,251.87

Finding the Fourth Proportional to 40,431.69, 60,666.84 and 18,251.87

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Solution

The fourth proportional to 40,431.69, 60,666.84 and 18,251.87 is: 27,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,431.69 : 60,666.84 = 18,251.87 : x
  2. Step 2: Convert to fraction form
    40,431.69/60,666.84 = 18,251.87/x
  3. Step 3: Cross multiply
    40,431.69x = 60,666.84 × 18,251.87
  4. Step 4: Simplify right side
    40,431.69x = 1,107,282,973.66
  5. Step 5: Solve for x
    x = 1,107,282,973.66/40,431.69
  6. Step 6: Final answer
    x = 27,386.51

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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.