Home / 42,615.12-63,912.42-13,033.21

Finding the Fourth Proportional to 42,615.12, 63,912.42 and 13,033.21

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Solution

The fourth proportional to 42,615.12, 63,912.42 and 13,033.21 is: 19,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.12 : 63,912.42 = 13,033.21 : x
  2. Step 2: Convert to fraction form
    42,615.12/63,912.42 = 13,033.21/x
  3. Step 3: Cross multiply
    42,615.12x = 63,912.42 × 13,033.21
  4. Step 4: Simplify right side
    42,615.12x = 832,983,988.62
  5. Step 5: Solve for x
    x = 832,983,988.62/42,615.12
  6. Step 6: Final answer
    x = 19,546.68

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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.