Home / 21,168.12-31,752.09-5,373.30

Finding the Fourth Proportional to 21,168.12, 31,752.09 and 5,373.30

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Solution

The fourth proportional to 21,168.12, 31,752.09 and 5,373.30 is: 8,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.12 : 31,752.09 = 5,373.30 : x
  2. Step 2: Convert to fraction form
    21,168.12/31,752.09 = 5,373.30/x
  3. Step 3: Cross multiply
    21,168.12x = 31,752.09 × 5,373.30
  4. Step 4: Simplify right side
    21,168.12x = 170,613,505.20
  5. Step 5: Solve for x
    x = 170,613,505.20/21,168.12
  6. Step 6: Final answer
    x = 8,059.93

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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.