Home / 28,711.76-43,042.10-11,177.51

Finding the Fourth Proportional to 28,711.76, 43,042.10 and 11,177.51

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Solution

The fourth proportional to 28,711.76, 43,042.10 and 11,177.51 is: 16,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.76 : 43,042.10 = 11,177.51 : x
  2. Step 2: Convert to fraction form
    28,711.76/43,042.10 = 11,177.51/x
  3. Step 3: Cross multiply
    28,711.76x = 43,042.10 × 11,177.51
  4. Step 4: Simplify right side
    28,711.76x = 481,103,232.07
  5. Step 5: Solve for x
    x = 481,103,232.07/28,711.76
  6. Step 6: Final answer
    x = 16,756.32

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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.