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Finding the Fourth Proportional to 20,064.96, 30,068.28 and 11,255.00

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Solution

The fourth proportional to 20,064.96, 30,068.28 and 11,255.00 is: 16,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.96 : 30,068.28 = 11,255.00 : x
  2. Step 2: Convert to fraction form
    20,064.96/30,068.28 = 11,255.00/x
  3. Step 3: Cross multiply
    20,064.96x = 30,068.28 × 11,255.00
  4. Step 4: Simplify right side
    20,064.96x = 338,418,341.06
  5. Step 5: Solve for x
    x = 338,418,341.06/20,064.96
  6. Step 6: Final answer
    x = 16,866.14

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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.