Home / 31,010.12-46,515.20-9,122.12

Finding the Fourth Proportional to 31,010.12, 46,515.20 and 9,122.12

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Solution

The fourth proportional to 31,010.12, 46,515.20 and 9,122.12 is: 13,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,010.12 : 46,515.20 = 9,122.12 : x
  2. Step 2: Convert to fraction form
    31,010.12/46,515.20 = 9,122.12/x
  3. Step 3: Cross multiply
    31,010.12x = 46,515.20 × 9,122.12
  4. Step 4: Simplify right side
    31,010.12x = 424,317,236.22
  5. Step 5: Solve for x
    x = 424,317,236.22/31,010.12
  6. Step 6: Final answer
    x = 13,683.19

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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.