Home / 20,134.46-30,054.40-18,670.80

Finding the Fourth Proportional to 20,134.46, 30,054.40 and 18,670.80

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Solution

The fourth proportional to 20,134.46, 30,054.40 and 18,670.80 is: 27,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.46 : 30,054.40 = 18,670.80 : x
  2. Step 2: Convert to fraction form
    20,134.46/30,054.40 = 18,670.80/x
  3. Step 3: Cross multiply
    20,134.46x = 30,054.40 × 18,670.80
  4. Step 4: Simplify right side
    20,134.46x = 561,139,691.52
  5. Step 5: Solve for x
    x = 561,139,691.52/20,134.46
  6. Step 6: Final answer
    x = 27,869.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.