Home / 31,158.45-46,738.08-8,972.19

Finding the Fourth Proportional to 31,158.45, 46,738.08 and 8,972.19

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Solution

The fourth proportional to 31,158.45, 46,738.08 and 8,972.19 is: 13,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,158.45 : 46,738.08 = 8,972.19 : x
  2. Step 2: Convert to fraction form
    31,158.45/46,738.08 = 8,972.19/x
  3. Step 3: Cross multiply
    31,158.45x = 46,738.08 × 8,972.19
  4. Step 4: Simplify right side
    31,158.45x = 419,342,934.00
  5. Step 5: Solve for x
    x = 419,342,934.00/31,158.45
  6. Step 6: Final answer
    x = 13,458.40

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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.