Home / 20,190.51-30,261.99-9,084.18

Finding the Fourth Proportional to 20,190.51, 30,261.99 and 9,084.18

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Solution

The fourth proportional to 20,190.51, 30,261.99 and 9,084.18 is: 13,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.51 : 30,261.99 = 9,084.18 : x
  2. Step 2: Convert to fraction form
    20,190.51/30,261.99 = 9,084.18/x
  3. Step 3: Cross multiply
    20,190.51x = 30,261.99 × 9,084.18
  4. Step 4: Simplify right side
    20,190.51x = 274,905,364.32
  5. Step 5: Solve for x
    x = 274,905,364.32/20,190.51
  6. Step 6: Final answer
    x = 13,615.57

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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.