Home / 31,821.47-47,725.94-30,240.66

Finding the Fourth Proportional to 31,821.47, 47,725.94 and 30,240.66

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Solution

The fourth proportional to 31,821.47, 47,725.94 and 30,240.66 is: 45,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.47 : 47,725.94 = 30,240.66 : x
  2. Step 2: Convert to fraction form
    31,821.47/47,725.94 = 30,240.66/x
  3. Step 3: Cross multiply
    31,821.47x = 47,725.94 × 30,240.66
  4. Step 4: Simplify right side
    31,821.47x = 1,443,264,000.32
  5. Step 5: Solve for x
    x = 1,443,264,000.32/31,821.47
  6. Step 6: Final answer
    x = 45,355.05

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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.