Home / 42,187.52-63,281.20-17,239.28

Finding the Fourth Proportional to 42,187.52, 63,281.20 and 17,239.28

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Solution

The fourth proportional to 42,187.52, 63,281.20 and 17,239.28 is: 25,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,187.52 : 63,281.20 = 17,239.28 : x
  2. Step 2: Convert to fraction form
    42,187.52/63,281.20 = 17,239.28/x
  3. Step 3: Cross multiply
    42,187.52x = 63,281.20 × 17,239.28
  4. Step 4: Simplify right side
    42,187.52x = 1,090,922,325.54
  5. Step 5: Solve for x
    x = 1,090,922,325.54/42,187.52
  6. Step 6: Final answer
    x = 25,858.89

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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.