Home / 42,256.60-63,292.79-21,159.85

Finding the Fourth Proportional to 42,256.60, 63,292.79 and 21,159.85

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Solution

The fourth proportional to 42,256.60, 63,292.79 and 21,159.85 is: 31,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,256.60 : 63,292.79 = 21,159.85 : x
  2. Step 2: Convert to fraction form
    42,256.60/63,292.79 = 21,159.85/x
  3. Step 3: Cross multiply
    42,256.60x = 63,292.79 × 21,159.85
  4. Step 4: Simplify right side
    42,256.60x = 1,339,265,955.82
  5. Step 5: Solve for x
    x = 1,339,265,955.82/42,256.60
  6. Step 6: Final answer
    x = 31,693.65

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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.