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Finding the Fourth Proportional to 21,998.96, 32,943.76 and 15,394.24

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Solution

The fourth proportional to 21,998.96, 32,943.76 and 15,394.24 is: 23,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.96 : 32,943.76 = 15,394.24 : x
  2. Step 2: Convert to fraction form
    21,998.96/32,943.76 = 15,394.24/x
  3. Step 3: Cross multiply
    21,998.96x = 32,943.76 × 15,394.24
  4. Step 4: Simplify right side
    21,998.96x = 507,144,147.94
  5. Step 5: Solve for x
    x = 507,144,147.94/21,998.96
  6. Step 6: Final answer
    x = 23,053.10

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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.