Home / 22,178.25-30,605.99-12,748.64

Finding the Fourth Proportional to 22,178.25, 30,605.99 and 12,748.64

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Solution

The fourth proportional to 22,178.25, 30,605.99 and 12,748.64 is: 17,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.25 : 30,605.99 = 12,748.64 : x
  2. Step 2: Convert to fraction form
    22,178.25/30,605.99 = 12,748.64/x
  3. Step 3: Cross multiply
    22,178.25x = 30,605.99 × 12,748.64
  4. Step 4: Simplify right side
    22,178.25x = 390,184,531.58
  5. Step 5: Solve for x
    x = 390,184,531.58/22,178.25
  6. Step 6: Final answer
    x = 17,593.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.