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Finding the Fourth Proportional to 28,955.70, 43,324.20 and 19,114.20

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Solution

The fourth proportional to 28,955.70, 43,324.20 and 19,114.20 is: 28,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.70 : 43,324.20 = 19,114.20 : x
  2. Step 2: Convert to fraction form
    28,955.70/43,324.20 = 19,114.20/x
  3. Step 3: Cross multiply
    28,955.70x = 43,324.20 × 19,114.20
  4. Step 4: Simplify right side
    28,955.70x = 828,107,423.64
  5. Step 5: Solve for x
    x = 828,107,423.64/28,955.70
  6. Step 6: Final answer
    x = 28,599.12

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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.