Home / 21,799.64-30,073.20-14,728.52

Finding the Fourth Proportional to 21,799.64, 30,073.20 and 14,728.52

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Solution

The fourth proportional to 21,799.64, 30,073.20 and 14,728.52 is: 20,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.64 : 30,073.20 = 14,728.52 : x
  2. Step 2: Convert to fraction form
    21,799.64/30,073.20 = 14,728.52/x
  3. Step 3: Cross multiply
    21,799.64x = 30,073.20 × 14,728.52
  4. Step 4: Simplify right side
    21,799.64x = 442,933,727.66
  5. Step 5: Solve for x
    x = 442,933,727.66/21,799.64
  6. Step 6: Final answer
    x = 20,318.40

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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.