Home / 20,042.79-27,658.64-11,089.76

Finding the Fourth Proportional to 20,042.79, 27,658.64 and 11,089.76

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Solution

The fourth proportional to 20,042.79, 27,658.64 and 11,089.76 is: 15,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.79 : 27,658.64 = 11,089.76 : x
  2. Step 2: Convert to fraction form
    20,042.79/27,658.64 = 11,089.76/x
  3. Step 3: Cross multiply
    20,042.79x = 27,658.64 × 11,089.76
  4. Step 4: Simplify right side
    20,042.79x = 306,727,693.35
  5. Step 5: Solve for x
    x = 306,727,693.35/20,042.79
  6. Step 6: Final answer
    x = 15,303.64

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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.