Home / 19,990.44-27,550.26-13,264.20

Finding the Fourth Proportional to 19,990.44, 27,550.26 and 13,264.20

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Solution

The fourth proportional to 19,990.44, 27,550.26 and 13,264.20 is: 18,280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.44 : 27,550.26 = 13,264.20 : x
  2. Step 2: Convert to fraction form
    19,990.44/27,550.26 = 13,264.20/x
  3. Step 3: Cross multiply
    19,990.44x = 27,550.26 × 13,264.20
  4. Step 4: Simplify right side
    19,990.44x = 365,432,158.69
  5. Step 5: Solve for x
    x = 365,432,158.69/19,990.44
  6. Step 6: Final answer
    x = 18,280.35

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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.