Home / 28,756.80-43,141.71-8,768.10

Finding the Fourth Proportional to 28,756.80, 43,141.71 and 8,768.10

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Solution

The fourth proportional to 28,756.80, 43,141.71 and 8,768.10 is: 13,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.80 : 43,141.71 = 8,768.10 : x
  2. Step 2: Convert to fraction form
    28,756.80/43,141.71 = 8,768.10/x
  3. Step 3: Cross multiply
    28,756.80x = 43,141.71 × 8,768.10
  4. Step 4: Simplify right side
    28,756.80x = 378,270,827.45
  5. Step 5: Solve for x
    x = 378,270,827.45/28,756.80
  6. Step 6: Final answer
    x = 13,154.13

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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.