Home / 26,957.13-40,386.42-19,543.20

Finding the Fourth Proportional to 26,957.13, 40,386.42 and 19,543.20

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Solution

The fourth proportional to 26,957.13, 40,386.42 and 19,543.20 is: 29,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,957.13 : 40,386.42 = 19,543.20 : x
  2. Step 2: Convert to fraction form
    26,957.13/40,386.42 = 19,543.20/x
  3. Step 3: Cross multiply
    26,957.13x = 40,386.42 × 19,543.20
  4. Step 4: Simplify right side
    26,957.13x = 789,279,883.34
  5. Step 5: Solve for x
    x = 789,279,883.34/26,957.13
  6. Step 6: Final answer
    x = 29,279.08

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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.