Home / 18,877.77-28,317.96-5,731.20

Finding the Fourth Proportional to 18,877.77, 28,317.96 and 5,731.20

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Solution

The fourth proportional to 18,877.77, 28,317.96 and 5,731.20 is: 8,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.77 : 28,317.96 = 5,731.20 : x
  2. Step 2: Convert to fraction form
    18,877.77/28,317.96 = 5,731.20/x
  3. Step 3: Cross multiply
    18,877.77x = 28,317.96 × 5,731.20
  4. Step 4: Simplify right side
    18,877.77x = 162,295,892.35
  5. Step 5: Solve for x
    x = 162,295,892.35/18,877.77
  6. Step 6: Final answer
    x = 8,597.20

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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.