Home / 31,871.30-47,806.93-15,180.74

Finding the Fourth Proportional to 31,871.30, 47,806.93 and 15,180.74

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Solution

The fourth proportional to 31,871.30, 47,806.93 and 15,180.74 is: 22,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,871.30 : 47,806.93 = 15,180.74 : x
  2. Step 2: Convert to fraction form
    31,871.30/47,806.93 = 15,180.74/x
  3. Step 3: Cross multiply
    31,871.30x = 47,806.93 × 15,180.74
  4. Step 4: Simplify right side
    31,871.30x = 725,744,574.53
  5. Step 5: Solve for x
    x = 725,744,574.53/31,871.30
  6. Step 6: Final answer
    x = 22,771.10

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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.