Home / 42,663.40-63,991.26-14,959.72

Finding the Fourth Proportional to 42,663.40, 63,991.26 and 14,959.72

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Solution

The fourth proportional to 42,663.40, 63,991.26 and 14,959.72 is: 22,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,663.40 : 63,991.26 = 14,959.72 : x
  2. Step 2: Convert to fraction form
    42,663.40/63,991.26 = 14,959.72/x
  3. Step 3: Cross multiply
    42,663.40x = 63,991.26 × 14,959.72
  4. Step 4: Simplify right side
    42,663.40x = 957,291,332.05
  5. Step 5: Solve for x
    x = 957,291,332.05/42,663.40
  6. Step 6: Final answer
    x = 22,438.23

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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.