Home / 21,712.35-32,580.83-12,346.53

Finding the Fourth Proportional to 21,712.35, 32,580.83 and 12,346.53

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Solution

The fourth proportional to 21,712.35, 32,580.83 and 12,346.53 is: 18,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.35 : 32,580.83 = 12,346.53 : x
  2. Step 2: Convert to fraction form
    21,712.35/32,580.83 = 12,346.53/x
  3. Step 3: Cross multiply
    21,712.35x = 32,580.83 × 12,346.53
  4. Step 4: Simplify right side
    21,712.35x = 402,260,103.71
  5. Step 5: Solve for x
    x = 402,260,103.71/21,712.35
  6. Step 6: Final answer
    x = 18,526.78

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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.