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Finding the Fourth Proportional to 29,796.40, 44,719.80 and 12,278.80

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Solution

The fourth proportional to 29,796.40, 44,719.80 and 12,278.80 is: 18,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,796.40 : 44,719.80 = 12,278.80 : x
  2. Step 2: Convert to fraction form
    29,796.40/44,719.80 = 12,278.80/x
  3. Step 3: Cross multiply
    29,796.40x = 44,719.80 × 12,278.80
  4. Step 4: Simplify right side
    29,796.40x = 549,105,480.24
  5. Step 5: Solve for x
    x = 549,105,480.24/29,796.40
  6. Step 6: Final answer
    x = 18,428.58

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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.