Home / 31,112.72-46,684.09-15,309.18

Finding the Fourth Proportional to 31,112.72, 46,684.09 and 15,309.18

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Solution

The fourth proportional to 31,112.72, 46,684.09 and 15,309.18 is: 22,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.72 : 46,684.09 = 15,309.18 : x
  2. Step 2: Convert to fraction form
    31,112.72/46,684.09 = 15,309.18/x
  3. Step 3: Cross multiply
    31,112.72x = 46,684.09 × 15,309.18
  4. Step 4: Simplify right side
    31,112.72x = 714,695,136.95
  5. Step 5: Solve for x
    x = 714,695,136.95/31,112.72
  6. Step 6: Final answer
    x = 22,971.16

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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.