Home / 31,010.20-46,515.30-8,821.40

Finding the Fourth Proportional to 31,010.20, 46,515.30 and 8,821.40

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Solution

The fourth proportional to 31,010.20, 46,515.30 and 8,821.40 is: 13,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,010.20 : 46,515.30 = 8,821.40 : x
  2. Step 2: Convert to fraction form
    31,010.20/46,515.30 = 8,821.40/x
  3. Step 3: Cross multiply
    31,010.20x = 46,515.30 × 8,821.40
  4. Step 4: Simplify right side
    31,010.20x = 410,330,067.42
  5. Step 5: Solve for x
    x = 410,330,067.42/31,010.20
  6. Step 6: Final answer
    x = 13,232.10

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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.