Home / 28,308.79-42,468.29-11,659.73

Finding the Fourth Proportional to 28,308.79, 42,468.29 and 11,659.73

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Solution

The fourth proportional to 28,308.79, 42,468.29 and 11,659.73 is: 17,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.79 : 42,468.29 = 11,659.73 : x
  2. Step 2: Convert to fraction form
    28,308.79/42,468.29 = 11,659.73/x
  3. Step 3: Cross multiply
    28,308.79x = 42,468.29 × 11,659.73
  4. Step 4: Simplify right side
    28,308.79x = 495,168,736.66
  5. Step 5: Solve for x
    x = 495,168,736.66/28,308.79
  6. Step 6: Final answer
    x = 17,491.70

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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.