Home / 30,801.12-42,512.14-19,463.41

Finding the Fourth Proportional to 30,801.12, 42,512.14 and 19,463.41

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Solution

The fourth proportional to 30,801.12, 42,512.14 and 19,463.41 is: 26,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,801.12 : 42,512.14 = 19,463.41 : x
  2. Step 2: Convert to fraction form
    30,801.12/42,512.14 = 19,463.41/x
  3. Step 3: Cross multiply
    30,801.12x = 42,512.14 × 19,463.41
  4. Step 4: Simplify right side
    30,801.12x = 827,431,210.80
  5. Step 5: Solve for x
    x = 827,431,210.80/30,801.12
  6. Step 6: Final answer
    x = 26,863.68

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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.