Home / 31,178.52-46,774.69-8,990.17

Finding the Fourth Proportional to 31,178.52, 46,774.69 and 8,990.17

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Solution

The fourth proportional to 31,178.52, 46,774.69 and 8,990.17 is: 13,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.52 : 46,774.69 = 8,990.17 : x
  2. Step 2: Convert to fraction form
    31,178.52/46,774.69 = 8,990.17/x
  3. Step 3: Cross multiply
    31,178.52x = 46,774.69 × 8,990.17
  4. Step 4: Simplify right side
    31,178.52x = 420,512,414.80
  5. Step 5: Solve for x
    x = 420,512,414.80/31,178.52
  6. Step 6: Final answer
    x = 13,487.25

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1.5x scale

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.