Home / 28,140.36-38,817.48-17,912.48

Finding the Fourth Proportional to 28,140.36, 38,817.48 and 17,912.48

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Solution

The fourth proportional to 28,140.36, 38,817.48 and 17,912.48 is: 24,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.36 : 38,817.48 = 17,912.48 : x
  2. Step 2: Convert to fraction form
    28,140.36/38,817.48 = 17,912.48/x
  3. Step 3: Cross multiply
    28,140.36x = 38,817.48 × 17,912.48
  4. Step 4: Simplify right side
    28,140.36x = 695,317,334.15
  5. Step 5: Solve for x
    x = 695,317,334.15/28,140.36
  6. Step 6: Final answer
    x = 24,708.90

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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.