Home / 19,218.20-28,827.30-15,330.20

Finding the Fourth Proportional to 19,218.20, 28,827.30 and 15,330.20

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Solution

The fourth proportional to 19,218.20, 28,827.30 and 15,330.20 is: 22,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.20 : 28,827.30 = 15,330.20 : x
  2. Step 2: Convert to fraction form
    19,218.20/28,827.30 = 15,330.20/x
  3. Step 3: Cross multiply
    19,218.20x = 28,827.30 × 15,330.20
  4. Step 4: Simplify right side
    19,218.20x = 441,928,274.46
  5. Step 5: Solve for x
    x = 441,928,274.46/19,218.20
  6. Step 6: Final answer
    x = 22,995.30

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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.