Home / 28,614.40-42,906.61-11,971.33

Finding the Fourth Proportional to 28,614.40, 42,906.61 and 11,971.33

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Solution

The fourth proportional to 28,614.40, 42,906.61 and 11,971.33 is: 17,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.40 : 42,906.61 = 11,971.33 : x
  2. Step 2: Convert to fraction form
    28,614.40/42,906.61 = 11,971.33/x
  3. Step 3: Cross multiply
    28,614.40x = 42,906.61 × 11,971.33
  4. Step 4: Simplify right side
    28,614.40x = 513,649,095.19
  5. Step 5: Solve for x
    x = 513,649,095.19/28,614.40
  6. Step 6: Final answer
    x = 17,950.72

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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.