Home / 20,697.04-28,564.01-12,201.76

Finding the Fourth Proportional to 20,697.04, 28,564.01 and 12,201.76

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Solution

The fourth proportional to 20,697.04, 28,564.01 and 12,201.76 is: 16,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.04 : 28,564.01 = 12,201.76 : x
  2. Step 2: Convert to fraction form
    20,697.04/28,564.01 = 12,201.76/x
  3. Step 3: Cross multiply
    20,697.04x = 28,564.01 × 12,201.76
  4. Step 4: Simplify right side
    20,697.04x = 348,531,194.66
  5. Step 5: Solve for x
    x = 348,531,194.66/20,697.04
  6. Step 6: Final answer
    x = 16,839.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.