Home / 31,730.20-47,595.30-30,272.20

Finding the Fourth Proportional to 31,730.20, 47,595.30 and 30,272.20

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Solution

The fourth proportional to 31,730.20, 47,595.30 and 30,272.20 is: 45,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730.20 : 47,595.30 = 30,272.20 : x
  2. Step 2: Convert to fraction form
    31,730.20/47,595.30 = 30,272.20/x
  3. Step 3: Cross multiply
    31,730.20x = 47,595.30 × 30,272.20
  4. Step 4: Simplify right side
    31,730.20x = 1,440,814,440.66
  5. Step 5: Solve for x
    x = 1,440,814,440.66/31,730.20
  6. Step 6: Final answer
    x = 45,408.30

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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.