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Finding the Fourth Proportional to 20,363.00, 30,525.56 and 7,891.16

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Solution

The fourth proportional to 20,363.00, 30,525.56 and 7,891.16 is: 11,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.00 : 30,525.56 = 7,891.16 : x
  2. Step 2: Convert to fraction form
    20,363.00/30,525.56 = 7,891.16/x
  3. Step 3: Cross multiply
    20,363.00x = 30,525.56 × 7,891.16
  4. Step 4: Simplify right side
    20,363.00x = 240,881,915.56
  5. Step 5: Solve for x
    x = 240,881,915.56/20,363.00
  6. Step 6: Final answer
    x = 11,829.40

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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.