Home / 39,422.72-59,137.28-19,681.28

Finding the Fourth Proportional to 39,422.72, 59,137.28 and 19,681.28

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Solution

The fourth proportional to 39,422.72, 59,137.28 and 19,681.28 is: 29,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.72 : 59,137.28 = 19,681.28 : x
  2. Step 2: Convert to fraction form
    39,422.72/59,137.28 = 19,681.28/x
  3. Step 3: Cross multiply
    39,422.72x = 59,137.28 × 19,681.28
  4. Step 4: Simplify right side
    39,422.72x = 1,163,897,366.12
  5. Step 5: Solve for x
    x = 1,163,897,366.12/39,422.72
  6. Step 6: Final answer
    x = 29,523.52

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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.