Home / 19,689.22-29,500.40-11,881.62

Finding the Fourth Proportional to 19,689.22, 29,500.40 and 11,881.62

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Solution

The fourth proportional to 19,689.22, 29,500.40 and 11,881.62 is: 17,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.22 : 29,500.40 = 11,881.62 : x
  2. Step 2: Convert to fraction form
    19,689.22/29,500.40 = 11,881.62/x
  3. Step 3: Cross multiply
    19,689.22x = 29,500.40 × 11,881.62
  4. Step 4: Simplify right side
    19,689.22x = 350,512,542.65
  5. Step 5: Solve for x
    x = 350,512,542.65/19,689.22
  6. Step 6: Final answer
    x = 17,802.26

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1.5x scale

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.