Home / 20,070.68-27,697.20-10,995.96

Finding the Fourth Proportional to 20,070.68, 27,697.20 and 10,995.96

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Solution

The fourth proportional to 20,070.68, 27,697.20 and 10,995.96 is: 15,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.68 : 27,697.20 = 10,995.96 : x
  2. Step 2: Convert to fraction form
    20,070.68/27,697.20 = 10,995.96/x
  3. Step 3: Cross multiply
    20,070.68x = 27,697.20 × 10,995.96
  4. Step 4: Simplify right side
    20,070.68x = 304,557,303.31
  5. Step 5: Solve for x
    x = 304,557,303.31/20,070.68
  6. Step 6: Final answer
    x = 15,174.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.