Home / 42,663.86-63,988.49-11,491.82

Finding the Fourth Proportional to 42,663.86, 63,988.49 and 11,491.82

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Solution

The fourth proportional to 42,663.86, 63,988.49 and 11,491.82 is: 17,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,663.86 : 63,988.49 = 11,491.82 : x
  2. Step 2: Convert to fraction form
    42,663.86/63,988.49 = 11,491.82/x
  3. Step 3: Cross multiply
    42,663.86x = 63,988.49 × 11,491.82
  4. Step 4: Simplify right side
    42,663.86x = 735,343,889.21
  5. Step 5: Solve for x
    x = 735,343,889.21/42,663.86
  6. Step 6: Final answer
    x = 17,235.76

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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.