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Finding the Fourth Proportional to 34,728.86, 47,926.05 and 18,813.29

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Solution

The fourth proportional to 34,728.86, 47,926.05 and 18,813.29 is: 25,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,728.86 : 47,926.05 = 18,813.29 : x
  2. Step 2: Convert to fraction form
    34,728.86/47,926.05 = 18,813.29/x
  3. Step 3: Cross multiply
    34,728.86x = 47,926.05 × 18,813.29
  4. Step 4: Simplify right side
    34,728.86x = 901,646,797.02
  5. Step 5: Solve for x
    x = 901,646,797.02/34,728.86
  6. Step 6: Final answer
    x = 25,962.47

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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.