Home / 32,911.20-49,366.80-21,101.40

Finding the Fourth Proportional to 32,911.20, 49,366.80 and 21,101.40

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Solution

The fourth proportional to 32,911.20, 49,366.80 and 21,101.40 is: 31,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,911.20 : 49,366.80 = 21,101.40 : x
  2. Step 2: Convert to fraction form
    32,911.20/49,366.80 = 21,101.40/x
  3. Step 3: Cross multiply
    32,911.20x = 49,366.80 × 21,101.40
  4. Step 4: Simplify right side
    32,911.20x = 1,041,708,593.52
  5. Step 5: Solve for x
    x = 1,041,708,593.52/32,911.20
  6. Step 6: Final answer
    x = 31,652.10

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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.