Home / 21,341.78-32,012.64-5,545.49

Finding the Fourth Proportional to 21,341.78, 32,012.64 and 5,545.49

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Solution

The fourth proportional to 21,341.78, 32,012.64 and 5,545.49 is: 8,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.78 : 32,012.64 = 5,545.49 : x
  2. Step 2: Convert to fraction form
    21,341.78/32,012.64 = 5,545.49/x
  3. Step 3: Cross multiply
    21,341.78x = 32,012.64 × 5,545.49
  4. Step 4: Simplify right side
    21,341.78x = 177,525,614.93
  5. Step 5: Solve for x
    x = 177,525,614.93/21,341.78
  6. Step 6: Final answer
    x = 8,318.22

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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.