Home / 28,351-42,528.30-8,631.01

Finding the Fourth Proportional to 28,351, 42,528.30 and 8,631.01

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Solution

The fourth proportional to 28,351, 42,528.30 and 8,631.01 is: 12,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351 : 42,528.30 = 8,631.01 : x
  2. Step 2: Convert to fraction form
    28,351/42,528.30 = 8,631.01/x
  3. Step 3: Cross multiply
    28,351x = 42,528.30 × 8,631.01
  4. Step 4: Simplify right side
    28,351x = 367,062,182.58
  5. Step 5: Solve for x
    x = 367,062,182.58/28,351
  6. Step 6: Final answer
    x = 12,947.06

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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.