Home / 20,304.17-28,025.69-11,808.28

Finding the Fourth Proportional to 20,304.17, 28,025.69 and 11,808.28

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Solution

The fourth proportional to 20,304.17, 28,025.69 and 11,808.28 is: 16,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.17 : 28,025.69 = 11,808.28 : x
  2. Step 2: Convert to fraction form
    20,304.17/28,025.69 = 11,808.28/x
  3. Step 3: Cross multiply
    20,304.17x = 28,025.69 × 11,808.28
  4. Step 4: Simplify right side
    20,304.17x = 330,935,194.71
  5. Step 5: Solve for x
    x = 330,935,194.71/20,304.17
  6. Step 6: Final answer
    x = 16,298.88

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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.