Home / 27,346.62-37,719.46-20,989.74

Finding the Fourth Proportional to 27,346.62, 37,719.46 and 20,989.74

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Solution

The fourth proportional to 27,346.62, 37,719.46 and 20,989.74 is: 28,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,346.62 : 37,719.46 = 20,989.74 : x
  2. Step 2: Convert to fraction form
    27,346.62/37,719.46 = 20,989.74/x
  3. Step 3: Cross multiply
    27,346.62x = 37,719.46 × 20,989.74
  4. Step 4: Simplify right side
    27,346.62x = 791,721,658.34
  5. Step 5: Solve for x
    x = 791,721,658.34/27,346.62
  6. Step 6: Final answer
    x = 28,951.35

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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.