Home / 28,715.63-43,073.44-8,995.72

Finding the Fourth Proportional to 28,715.63, 43,073.44 and 8,995.72

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Solution

The fourth proportional to 28,715.63, 43,073.44 and 8,995.72 is: 13,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.63 : 43,073.44 = 8,995.72 : x
  2. Step 2: Convert to fraction form
    28,715.63/43,073.44 = 8,995.72/x
  3. Step 3: Cross multiply
    28,715.63x = 43,073.44 × 8,995.72
  4. Step 4: Simplify right side
    28,715.63x = 387,476,605.68
  5. Step 5: Solve for x
    x = 387,476,605.68/28,715.63
  6. Step 6: Final answer
    x = 13,493.58

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Half scale
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Double scale
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Similar ratio
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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.