Home / 42,628.32-63,934.74-11,456.28

Finding the Fourth Proportional to 42,628.32, 63,934.74 and 11,456.28

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Solution

The fourth proportional to 42,628.32, 63,934.74 and 11,456.28 is: 17,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,628.32 : 63,934.74 = 11,456.28 : x
  2. Step 2: Convert to fraction form
    42,628.32/63,934.74 = 11,456.28/x
  3. Step 3: Cross multiply
    42,628.32x = 63,934.74 × 11,456.28
  4. Step 4: Simplify right side
    42,628.32x = 732,454,283.17
  5. Step 5: Solve for x
    x = 732,454,283.17/42,628.32
  6. Step 6: Final answer
    x = 17,182.34

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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.