Home / 42,619.80-63,924.10-13,040.60

Finding the Fourth Proportional to 42,619.80, 63,924.10 and 13,040.60

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Solution

The fourth proportional to 42,619.80, 63,924.10 and 13,040.60 is: 19,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.80 : 63,924.10 = 13,040.60 : x
  2. Step 2: Convert to fraction form
    42,619.80/63,924.10 = 13,040.60/x
  3. Step 3: Cross multiply
    42,619.80x = 63,924.10 × 13,040.60
  4. Step 4: Simplify right side
    42,619.80x = 833,608,618.46
  5. Step 5: Solve for x
    x = 833,608,618.46/42,619.80
  6. Step 6: Final answer
    x = 19,559.19

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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.