Home / 23,061.90-31,812.98-15,418.33

Finding the Fourth Proportional to 23,061.90, 31,812.98 and 15,418.33

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Solution

The fourth proportional to 23,061.90, 31,812.98 and 15,418.33 is: 21,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,061.90 : 31,812.98 = 15,418.33 : x
  2. Step 2: Convert to fraction form
    23,061.90/31,812.98 = 15,418.33/x
  3. Step 3: Cross multiply
    23,061.90x = 31,812.98 × 15,418.33
  4. Step 4: Simplify right side
    23,061.90x = 490,503,073.33
  5. Step 5: Solve for x
    x = 490,503,073.33/23,061.90
  6. Step 6: Final answer
    x = 21,268.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.