Home / 42,019.66-63,039.21-18,647.92

Finding the Fourth Proportional to 42,019.66, 63,039.21 and 18,647.92

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Solution

The fourth proportional to 42,019.66, 63,039.21 and 18,647.92 is: 27,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.66 : 63,039.21 = 18,647.92 : x
  2. Step 2: Convert to fraction form
    42,019.66/63,039.21 = 18,647.92/x
  3. Step 3: Cross multiply
    42,019.66x = 63,039.21 × 18,647.92
  4. Step 4: Simplify right side
    42,019.66x = 1,175,550,144.94
  5. Step 5: Solve for x
    x = 1,175,550,144.94/42,019.66
  6. Step 6: Final answer
    x = 27,976.19

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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.