Home / 31,319.61-46,974.41-9,127.79

Finding the Fourth Proportional to 31,319.61, 46,974.41 and 9,127.79

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Solution

The fourth proportional to 31,319.61, 46,974.41 and 9,127.79 is: 13,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.61 : 46,974.41 = 9,127.79 : x
  2. Step 2: Convert to fraction form
    31,319.61/46,974.41 = 9,127.79/x
  3. Step 3: Cross multiply
    31,319.61x = 46,974.41 × 9,127.79
  4. Step 4: Simplify right side
    31,319.61x = 428,772,549.85
  5. Step 5: Solve for x
    x = 428,772,549.85/31,319.61
  6. Step 6: Final answer
    x = 13,690.23

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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.