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Finding the Fourth Proportional to 19,301.92, 28,958.36 and 9,948.79

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Solution

The fourth proportional to 19,301.92, 28,958.36 and 9,948.79 is: 14,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,301.92 : 28,958.36 = 9,948.79 : x
  2. Step 2: Convert to fraction form
    19,301.92/28,958.36 = 9,948.79/x
  3. Step 3: Cross multiply
    19,301.92x = 28,958.36 × 9,948.79
  4. Step 4: Simplify right side
    19,301.92x = 288,100,642.38
  5. Step 5: Solve for x
    x = 288,100,642.38/19,301.92
  6. Step 6: Final answer
    x = 14,926.01

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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.