Home / 28,069.64-42,079.68-11,443.58

Finding the Fourth Proportional to 28,069.64, 42,079.68 and 11,443.58

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Solution

The fourth proportional to 28,069.64, 42,079.68 and 11,443.58 is: 17,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.64 : 42,079.68 = 11,443.58 : x
  2. Step 2: Convert to fraction form
    28,069.64/42,079.68 = 11,443.58/x
  3. Step 3: Cross multiply
    28,069.64x = 42,079.68 × 11,443.58
  4. Step 4: Simplify right side
    28,069.64x = 481,541,974.06
  5. Step 5: Solve for x
    x = 481,541,974.06/28,069.64
  6. Step 6: Final answer
    x = 17,155.26

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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.