Home / 20,884.16-31,326.08-5,301.92

Finding the Fourth Proportional to 20,884.16, 31,326.08 and 5,301.92

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Solution

The fourth proportional to 20,884.16, 31,326.08 and 5,301.92 is: 7,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.16 : 31,326.08 = 5,301.92 : x
  2. Step 2: Convert to fraction form
    20,884.16/31,326.08 = 5,301.92/x
  3. Step 3: Cross multiply
    20,884.16x = 31,326.08 × 5,301.92
  4. Step 4: Simplify right side
    20,884.16x = 166,088,370.07
  5. Step 5: Solve for x
    x = 166,088,370.07/20,884.16
  6. Step 6: Final answer
    x = 7,952.84

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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.