Home / 20,326.64-30,484.48-7,177.28

Finding the Fourth Proportional to 20,326.64, 30,484.48 and 7,177.28

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Solution

The fourth proportional to 20,326.64, 30,484.48 and 7,177.28 is: 10,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.64 : 30,484.48 = 7,177.28 : x
  2. Step 2: Convert to fraction form
    20,326.64/30,484.48 = 7,177.28/x
  3. Step 3: Cross multiply
    20,326.64x = 30,484.48 × 7,177.28
  4. Step 4: Simplify right side
    20,326.64x = 218,795,648.61
  5. Step 5: Solve for x
    x = 218,795,648.61/20,326.64
  6. Step 6: Final answer
    x = 10,763.99

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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.