Home / 31,313.52-46,965.72-9,120.94

Finding the Fourth Proportional to 31,313.52, 46,965.72 and 9,120.94

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Solution

The fourth proportional to 31,313.52, 46,965.72 and 9,120.94 is: 13,680.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.52 : 46,965.72 = 9,120.94 : x
  2. Step 2: Convert to fraction form
    31,313.52/46,965.72 = 9,120.94/x
  3. Step 3: Cross multiply
    31,313.52x = 46,965.72 × 9,120.94
  4. Step 4: Simplify right side
    31,313.52x = 428,371,514.18
  5. Step 5: Solve for x
    x = 428,371,514.18/31,313.52
  6. Step 6: Final answer
    x = 13,680.08

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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.