Home / 42,048.39-63,087.77-20,986.77

Finding the Fourth Proportional to 42,048.39, 63,087.77 and 20,986.77

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Solution

The fourth proportional to 42,048.39, 63,087.77 and 20,986.77 is: 31,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,048.39 : 63,087.77 = 20,986.77 : x
  2. Step 2: Convert to fraction form
    42,048.39/63,087.77 = 20,986.77/x
  3. Step 3: Cross multiply
    42,048.39x = 63,087.77 × 20,986.77
  4. Step 4: Simplify right side
    42,048.39x = 1,324,008,518.80
  5. Step 5: Solve for x
    x = 1,324,008,518.80/42,048.39
  6. Step 6: Final answer
    x = 31,487.73

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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.