Home / 30,541.11-42,146.15-16,928.92

Finding the Fourth Proportional to 30,541.11, 42,146.15 and 16,928.92

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Solution

The fourth proportional to 30,541.11, 42,146.15 and 16,928.92 is: 23,361.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541.11 : 42,146.15 = 16,928.92 : x
  2. Step 2: Convert to fraction form
    30,541.11/42,146.15 = 16,928.92/x
  3. Step 3: Cross multiply
    30,541.11x = 42,146.15 × 16,928.92
  4. Step 4: Simplify right side
    30,541.11x = 713,488,801.66
  5. Step 5: Solve for x
    x = 713,488,801.66/30,541.11
  6. Step 6: Final answer
    x = 23,361.59

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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.