Home / 28,756.41-43,152.54-10,988.65

Finding the Fourth Proportional to 28,756.41, 43,152.54 and 10,988.65

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Solution

The fourth proportional to 28,756.41, 43,152.54 and 10,988.65 is: 16,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.41 : 43,152.54 = 10,988.65 : x
  2. Step 2: Convert to fraction form
    28,756.41/43,152.54 = 10,988.65/x
  3. Step 3: Cross multiply
    28,756.41x = 43,152.54 × 10,988.65
  4. Step 4: Simplify right side
    28,756.41x = 474,188,171.40
  5. Step 5: Solve for x
    x = 474,188,171.40/28,756.41
  6. Step 6: Final answer
    x = 16,489.83

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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.