Home / 30,935.37-42,690.93-16,788.21

Finding the Fourth Proportional to 30,935.37, 42,690.93 and 16,788.21

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Solution

The fourth proportional to 30,935.37, 42,690.93 and 16,788.21 is: 23,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.37 : 42,690.93 = 16,788.21 : x
  2. Step 2: Convert to fraction form
    30,935.37/42,690.93 = 16,788.21/x
  3. Step 3: Cross multiply
    30,935.37x = 42,690.93 × 16,788.21
  4. Step 4: Simplify right side
    30,935.37x = 716,704,297.94
  5. Step 5: Solve for x
    x = 716,704,297.94/30,935.37
  6. Step 6: Final answer
    x = 23,167.79

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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.