Home / 28,517.48-39,347.94-15,941.80

Finding the Fourth Proportional to 28,517.48, 39,347.94 and 15,941.80

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Solution

The fourth proportional to 28,517.48, 39,347.94 and 15,941.80 is: 21,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.48 : 39,347.94 = 15,941.80 : x
  2. Step 2: Convert to fraction form
    28,517.48/39,347.94 = 15,941.80/x
  3. Step 3: Cross multiply
    28,517.48x = 39,347.94 × 15,941.80
  4. Step 4: Simplify right side
    28,517.48x = 627,276,989.89
  5. Step 5: Solve for x
    x = 627,276,989.89/28,517.48
  6. Step 6: Final answer
    x = 21,996.23

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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.