Home / 42,127.13-63,239.29-21,394.37

Finding the Fourth Proportional to 42,127.13, 63,239.29 and 21,394.37

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Solution

The fourth proportional to 42,127.13, 63,239.29 and 21,394.37 is: 32,116.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127.13 : 63,239.29 = 21,394.37 : x
  2. Step 2: Convert to fraction form
    42,127.13/63,239.29 = 21,394.37/x
  3. Step 3: Cross multiply
    42,127.13x = 63,239.29 × 21,394.37
  4. Step 4: Simplify right side
    42,127.13x = 1,352,964,452.60
  5. Step 5: Solve for x
    x = 1,352,964,452.60/42,127.13
  6. Step 6: Final answer
    x = 32,116.23

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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.