Home / 22,178.60-30,607.62-12,748.04

Finding the Fourth Proportional to 22,178.60, 30,607.62 and 12,748.04

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Solution

The fourth proportional to 22,178.60, 30,607.62 and 12,748.04 is: 17,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.60 : 30,607.62 = 12,748.04 : x
  2. Step 2: Convert to fraction form
    22,178.60/30,607.62 = 12,748.04/x
  3. Step 3: Cross multiply
    22,178.60x = 30,607.62 × 12,748.04
  4. Step 4: Simplify right side
    22,178.60x = 390,187,164.06
  5. Step 5: Solve for x
    x = 390,187,164.06/22,178.60
  6. Step 6: Final answer
    x = 17,592.96

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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.