Home / 20,060.12-30,072.90-9,679.16

Finding the Fourth Proportional to 20,060.12, 30,072.90 and 9,679.16

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Solution

The fourth proportional to 20,060.12, 30,072.90 and 9,679.16 is: 14,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.12 : 30,072.90 = 9,679.16 : x
  2. Step 2: Convert to fraction form
    20,060.12/30,072.90 = 9,679.16/x
  3. Step 3: Cross multiply
    20,060.12x = 30,072.90 × 9,679.16
  4. Step 4: Simplify right side
    20,060.12x = 291,080,410.76
  5. Step 5: Solve for x
    x = 291,080,410.76/20,060.12
  6. Step 6: Final answer
    x = 14,510.40

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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.