Home / 30,935.57-42,691.19-16,788.41

Finding the Fourth Proportional to 30,935.57, 42,691.19 and 16,788.41

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Solution

The fourth proportional to 30,935.57, 42,691.19 and 16,788.41 is: 23,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.57 : 42,691.19 = 16,788.41 : x
  2. Step 2: Convert to fraction form
    30,935.57/42,691.19 = 16,788.41/x
  3. Step 3: Cross multiply
    30,935.57x = 42,691.19 × 16,788.41
  4. Step 4: Simplify right side
    30,935.57x = 716,716,903.71
  5. Step 5: Solve for x
    x = 716,716,903.71/30,935.57
  6. Step 6: Final answer
    x = 23,168.06

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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.