Home / 28,971.12-43,453.08-9,251.76

Finding the Fourth Proportional to 28,971.12, 43,453.08 and 9,251.76

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Solution

The fourth proportional to 28,971.12, 43,453.08 and 9,251.76 is: 13,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.12 : 43,453.08 = 9,251.76 : x
  2. Step 2: Convert to fraction form
    28,971.12/43,453.08 = 9,251.76/x
  3. Step 3: Cross multiply
    28,971.12x = 43,453.08 × 9,251.76
  4. Step 4: Simplify right side
    28,971.12x = 402,017,467.42
  5. Step 5: Solve for x
    x = 402,017,467.42/28,971.12
  6. Step 6: Final answer
    x = 13,876.49

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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.