Home / 40,420.98-55,782.66-22,515.99

Finding the Fourth Proportional to 40,420.98, 55,782.66 and 22,515.99

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Solution

The fourth proportional to 40,420.98, 55,782.66 and 22,515.99 is: 31,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.98 : 55,782.66 = 22,515.99 : x
  2. Step 2: Convert to fraction form
    40,420.98/55,782.66 = 22,515.99/x
  3. Step 3: Cross multiply
    40,420.98x = 55,782.66 × 22,515.99
  4. Step 4: Simplify right side
    40,420.98x = 1,256,001,814.73
  5. Step 5: Solve for x
    x = 1,256,001,814.73/40,420.98
  6. Step 6: Final answer
    x = 31,073.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.