Home / 31,326.47-46,991.76-9,137.99

Finding the Fourth Proportional to 31,326.47, 46,991.76 and 9,137.99

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Solution

The fourth proportional to 31,326.47, 46,991.76 and 9,137.99 is: 13,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,326.47 : 46,991.76 = 9,137.99 : x
  2. Step 2: Convert to fraction form
    31,326.47/46,991.76 = 9,137.99/x
  3. Step 3: Cross multiply
    31,326.47x = 46,991.76 × 9,137.99
  4. Step 4: Simplify right side
    31,326.47x = 429,409,952.31
  5. Step 5: Solve for x
    x = 429,409,952.31/31,326.47
  6. Step 6: Final answer
    x = 13,707.58

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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.