Home / 31,402.20-47,103.30-8,027.40

Finding the Fourth Proportional to 31,402.20, 47,103.30 and 8,027.40

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Solution

The fourth proportional to 31,402.20, 47,103.30 and 8,027.40 is: 12,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.20 : 47,103.30 = 8,027.40 : x
  2. Step 2: Convert to fraction form
    31,402.20/47,103.30 = 8,027.40/x
  3. Step 3: Cross multiply
    31,402.20x = 47,103.30 × 8,027.40
  4. Step 4: Simplify right side
    31,402.20x = 378,117,030.42
  5. Step 5: Solve for x
    x = 378,117,030.42/31,402.20
  6. Step 6: Final answer
    x = 12,041.10

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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.