Home / 31,818.72-47,655.40-15,190.46

Finding the Fourth Proportional to 31,818.72, 47,655.40 and 15,190.46

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Solution

The fourth proportional to 31,818.72, 47,655.40 and 15,190.46 is: 22,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.72 : 47,655.40 = 15,190.46 : x
  2. Step 2: Convert to fraction form
    31,818.72/47,655.40 = 15,190.46/x
  3. Step 3: Cross multiply
    31,818.72x = 47,655.40 × 15,190.46
  4. Step 4: Simplify right side
    31,818.72x = 723,907,447.48
  5. Step 5: Solve for x
    x = 723,907,447.48/31,818.72
  6. Step 6: Final answer
    x = 22,750.99

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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.