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Finding the Fourth Proportional to 20,005.02, 30,011.99 and 7,525.15

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Solution

The fourth proportional to 20,005.02, 30,011.99 and 7,525.15 is: 11,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.02 : 30,011.99 = 7,525.15 : x
  2. Step 2: Convert to fraction form
    20,005.02/30,011.99 = 7,525.15/x
  3. Step 3: Cross multiply
    20,005.02x = 30,011.99 × 7,525.15
  4. Step 4: Simplify right side
    20,005.02x = 225,844,726.55
  5. Step 5: Solve for x
    x = 225,844,726.55/20,005.02
  6. Step 6: Final answer
    x = 11,289.40

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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.