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Finding the Fourth Proportional to 30,508.68, 45,543.21 and 26,571

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Solution

The fourth proportional to 30,508.68, 45,543.21 and 26,571 is: 39,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.68 : 45,543.21 = 26,571 : x
  2. Step 2: Convert to fraction form
    30,508.68/45,543.21 = 26,571/x
  3. Step 3: Cross multiply
    30,508.68x = 45,543.21 × 26,571
  4. Step 4: Simplify right side
    30,508.68x = 1,210,128,632.91
  5. Step 5: Solve for x
    x = 1,210,128,632.91/30,508.68
  6. Step 6: Final answer
    x = 39,665.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.