Home / 28,249.53-42,374.31-12,656.22

Finding the Fourth Proportional to 28,249.53, 42,374.31 and 12,656.22

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Solution

The fourth proportional to 28,249.53, 42,374.31 and 12,656.22 is: 18,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.53 : 42,374.31 = 12,656.22 : x
  2. Step 2: Convert to fraction form
    28,249.53/42,374.31 = 12,656.22/x
  3. Step 3: Cross multiply
    28,249.53x = 42,374.31 × 12,656.22
  4. Step 4: Simplify right side
    28,249.53x = 536,298,589.71
  5. Step 5: Solve for x
    x = 536,298,589.71/28,249.53
  6. Step 6: Final answer
    x = 18,984.34

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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.