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Finding the Fourth Proportional to 35,479.78, 48,962.47 and 19,564.80

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Solution

The fourth proportional to 35,479.78, 48,962.47 and 19,564.80 is: 26,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.78 : 48,962.47 = 19,564.80 : x
  2. Step 2: Convert to fraction form
    35,479.78/48,962.47 = 19,564.80/x
  3. Step 3: Cross multiply
    35,479.78x = 48,962.47 × 19,564.80
  4. Step 4: Simplify right side
    35,479.78x = 957,941,067.73
  5. Step 5: Solve for x
    x = 957,941,067.73/35,479.78
  6. Step 6: Final answer
    x = 26,999.63

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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.