Home / 30,506.82-42,101.28-17,078.92

Finding the Fourth Proportional to 30,506.82, 42,101.28 and 17,078.92

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Solution

The fourth proportional to 30,506.82, 42,101.28 and 17,078.92 is: 23,569.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506.82 : 42,101.28 = 17,078.92 : x
  2. Step 2: Convert to fraction form
    30,506.82/42,101.28 = 17,078.92/x
  3. Step 3: Cross multiply
    30,506.82x = 42,101.28 × 17,078.92
  4. Step 4: Simplify right side
    30,506.82x = 719,044,393.02
  5. Step 5: Solve for x
    x = 719,044,393.02/30,506.82
  6. Step 6: Final answer
    x = 23,569.96

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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.