Home / 30,935.52-42,691.05-16,788.42

Finding the Fourth Proportional to 30,935.52, 42,691.05 and 16,788.42

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Solution

The fourth proportional to 30,935.52, 42,691.05 and 16,788.42 is: 23,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.52 : 42,691.05 = 16,788.42 : x
  2. Step 2: Convert to fraction form
    30,935.52/42,691.05 = 16,788.42/x
  3. Step 3: Cross multiply
    30,935.52x = 42,691.05 × 16,788.42
  4. Step 4: Simplify right side
    30,935.52x = 716,715,277.64
  5. Step 5: Solve for x
    x = 716,715,277.64/30,935.52
  6. Step 6: Final answer
    x = 23,168.04

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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.