Home / 30,671.28-45,985.38-11,935.53

Finding the Fourth Proportional to 30,671.28, 45,985.38 and 11,935.53

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Solution

The fourth proportional to 30,671.28, 45,985.38 and 11,935.53 is: 17,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.28 : 45,985.38 = 11,935.53 : x
  2. Step 2: Convert to fraction form
    30,671.28/45,985.38 = 11,935.53/x
  3. Step 3: Cross multiply
    30,671.28x = 45,985.38 × 11,935.53
  4. Step 4: Simplify right side
    30,671.28x = 548,859,882.55
  5. Step 5: Solve for x
    x = 548,859,882.55/30,671.28
  6. Step 6: Final answer
    x = 17,894.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.