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Finding the Fourth Proportional to 20,654.32, 30,985.08 and 7,525.04

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Solution

The fourth proportional to 20,654.32, 30,985.08 and 7,525.04 is: 11,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.32 : 30,985.08 = 7,525.04 : x
  2. Step 2: Convert to fraction form
    20,654.32/30,985.08 = 7,525.04/x
  3. Step 3: Cross multiply
    20,654.32x = 30,985.08 × 7,525.04
  4. Step 4: Simplify right side
    20,654.32x = 233,163,966.40
  5. Step 5: Solve for x
    x = 233,163,966.40/20,654.32
  6. Step 6: Final answer
    x = 11,288.87

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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.