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Finding the Fourth Proportional to 34,784.85, 48,003.11 and 19,677.20

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Solution

The fourth proportional to 34,784.85, 48,003.11 and 19,677.20 is: 27,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,784.85 : 48,003.11 = 19,677.20 : x
  2. Step 2: Convert to fraction form
    34,784.85/48,003.11 = 19,677.20/x
  3. Step 3: Cross multiply
    34,784.85x = 48,003.11 × 19,677.20
  4. Step 4: Simplify right side
    34,784.85x = 944,566,725.28
  5. Step 5: Solve for x
    x = 944,566,725.28/34,784.85
  6. Step 6: Final answer
    x = 27,154.54

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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.