Home / 28,911.08-39,897.56-16,974.61

Finding the Fourth Proportional to 28,911.08, 39,897.56 and 16,974.61

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Solution

The fourth proportional to 28,911.08, 39,897.56 and 16,974.61 is: 23,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.08 : 39,897.56 = 16,974.61 : x
  2. Step 2: Convert to fraction form
    28,911.08/39,897.56 = 16,974.61/x
  3. Step 3: Cross multiply
    28,911.08x = 39,897.56 × 16,974.61
  4. Step 4: Simplify right side
    28,911.08x = 677,245,688.07
  5. Step 5: Solve for x
    x = 677,245,688.07/28,911.08
  6. Step 6: Final answer
    x = 23,425.13

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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.