Home / 23,419.98-35,143.80-8,639.22

Finding the Fourth Proportional to 23,419.98, 35,143.80 and 8,639.22

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Solution

The fourth proportional to 23,419.98, 35,143.80 and 8,639.22 is: 12,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,419.98 : 35,143.80 = 8,639.22 : x
  2. Step 2: Convert to fraction form
    23,419.98/35,143.80 = 8,639.22/x
  3. Step 3: Cross multiply
    23,419.98x = 35,143.80 × 8,639.22
  4. Step 4: Simplify right side
    23,419.98x = 303,615,019.84
  5. Step 5: Solve for x
    x = 303,615,019.84/23,419.98
  6. Step 6: Final answer
    x = 12,963.93

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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.