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Finding the Fourth Proportional to 29,891.40, 44,817.90 and 12,368.20

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Solution

The fourth proportional to 29,891.40, 44,817.90 and 12,368.20 is: 18,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,891.40 : 44,817.90 = 12,368.20 : x
  2. Step 2: Convert to fraction form
    29,891.40/44,817.90 = 12,368.20/x
  3. Step 3: Cross multiply
    29,891.40x = 44,817.90 × 12,368.20
  4. Step 4: Simplify right side
    29,891.40x = 554,316,750.78
  5. Step 5: Solve for x
    x = 554,316,750.78/29,891.40
  6. Step 6: Final answer
    x = 18,544.36

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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.