Home / 28,351.80-42,528.78-9,632.70

Finding the Fourth Proportional to 28,351.80, 42,528.78 and 9,632.70

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Solution

The fourth proportional to 28,351.80, 42,528.78 and 9,632.70 is: 14,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.80 : 42,528.78 = 9,632.70 : x
  2. Step 2: Convert to fraction form
    28,351.80/42,528.78 = 9,632.70/x
  3. Step 3: Cross multiply
    28,351.80x = 42,528.78 × 9,632.70
  4. Step 4: Simplify right side
    28,351.80x = 409,666,979.11
  5. Step 5: Solve for x
    x = 409,666,979.11/28,351.80
  6. Step 6: Final answer
    x = 14,449.42

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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.