Home / 42,988.44-64,461.92-18,021.79

Finding the Fourth Proportional to 42,988.44, 64,461.92 and 18,021.79

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Solution

The fourth proportional to 42,988.44, 64,461.92 and 18,021.79 is: 27,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,988.44 : 64,461.92 = 18,021.79 : x
  2. Step 2: Convert to fraction form
    42,988.44/64,461.92 = 18,021.79/x
  3. Step 3: Cross multiply
    42,988.44x = 64,461.92 × 18,021.79
  4. Step 4: Simplify right side
    42,988.44x = 1,161,719,185.24
  5. Step 5: Solve for x
    x = 1,161,719,185.24/42,988.44
  6. Step 6: Final answer
    x = 27,023.99

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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.