Home / 30,935.82-42,691.53-16,788.66

Finding the Fourth Proportional to 30,935.82, 42,691.53 and 16,788.66

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Solution

The fourth proportional to 30,935.82, 42,691.53 and 16,788.66 is: 23,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.82 : 42,691.53 = 16,788.66 : x
  2. Step 2: Convert to fraction form
    30,935.82/42,691.53 = 16,788.66/x
  3. Step 3: Cross multiply
    30,935.82x = 42,691.53 × 16,788.66
  4. Step 4: Simplify right side
    30,935.82x = 716,733,582.05
  5. Step 5: Solve for x
    x = 716,733,582.05/30,935.82
  6. Step 6: Final answer
    x = 23,168.40

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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.