Home / 39,530.72-59,315.55-18,472.21

Finding the Fourth Proportional to 39,530.72, 59,315.55 and 18,472.21

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Solution

The fourth proportional to 39,530.72, 59,315.55 and 18,472.21 is: 27,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,530.72 : 59,315.55 = 18,472.21 : x
  2. Step 2: Convert to fraction form
    39,530.72/59,315.55 = 18,472.21/x
  3. Step 3: Cross multiply
    39,530.72x = 59,315.55 × 18,472.21
  4. Step 4: Simplify right side
    39,530.72x = 1,095,689,147.58
  5. Step 5: Solve for x
    x = 1,095,689,147.58/39,530.72
  6. Step 6: Final answer
    x = 27,717.41

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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.