Home / 39,732.79-59,529.12-20,971.49

Finding the Fourth Proportional to 39,732.79, 59,529.12 and 20,971.49

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Solution

The fourth proportional to 39,732.79, 59,529.12 and 20,971.49 is: 31,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.79 : 59,529.12 = 20,971.49 : x
  2. Step 2: Convert to fraction form
    39,732.79/59,529.12 = 20,971.49/x
  3. Step 3: Cross multiply
    39,732.79x = 59,529.12 × 20,971.49
  4. Step 4: Simplify right side
    39,732.79x = 1,248,414,344.79
  5. Step 5: Solve for x
    x = 1,248,414,344.79/39,732.79
  6. Step 6: Final answer
    x = 31,420.26

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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.