Home / 19,761.45-29,663.04-19,315.23

Finding the Fourth Proportional to 19,761.45, 29,663.04 and 19,315.23

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Solution

The fourth proportional to 19,761.45, 29,663.04 and 19,315.23 is: 28,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.45 : 29,663.04 = 19,315.23 : x
  2. Step 2: Convert to fraction form
    19,761.45/29,663.04 = 19,315.23/x
  3. Step 3: Cross multiply
    19,761.45x = 29,663.04 × 19,315.23
  4. Step 4: Simplify right side
    19,761.45x = 572,948,440.10
  5. Step 5: Solve for x
    x = 572,948,440.10/19,761.45
  6. Step 6: Final answer
    x = 28,993.24

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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.