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Finding the Fourth Proportional to 32,107.20, 48,164.40 and 9,920.40

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Solution

The fourth proportional to 32,107.20, 48,164.40 and 9,920.40 is: 14,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,107.20 : 48,164.40 = 9,920.40 : x
  2. Step 2: Convert to fraction form
    32,107.20/48,164.40 = 9,920.40/x
  3. Step 3: Cross multiply
    32,107.20x = 48,164.40 × 9,920.40
  4. Step 4: Simplify right side
    32,107.20x = 477,810,113.76
  5. Step 5: Solve for x
    x = 477,810,113.76/32,107.20
  6. Step 6: Final answer
    x = 14,881.71

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1.5x scale

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.