Home / 40,282.98-60,430.62-20,550.78

Finding the Fourth Proportional to 40,282.98, 60,430.62 and 20,550.78

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Solution

The fourth proportional to 40,282.98, 60,430.62 and 20,550.78 is: 30,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,282.98 : 60,430.62 = 20,550.78 : x
  2. Step 2: Convert to fraction form
    40,282.98/60,430.62 = 20,550.78/x
  3. Step 3: Cross multiply
    40,282.98x = 60,430.62 × 20,550.78
  4. Step 4: Simplify right side
    40,282.98x = 1,241,896,376.88
  5. Step 5: Solve for x
    x = 1,241,896,376.88/40,282.98
  6. Step 6: Final answer
    x = 30,829.31

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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.