Home / 21,723.71-29,993.24-14,647.55

Finding the Fourth Proportional to 21,723.71, 29,993.24 and 14,647.55

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Solution

The fourth proportional to 21,723.71, 29,993.24 and 14,647.55 is: 20,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.71 : 29,993.24 = 14,647.55 : x
  2. Step 2: Convert to fraction form
    21,723.71/29,993.24 = 14,647.55/x
  3. Step 3: Cross multiply
    21,723.71x = 29,993.24 × 14,647.55
  4. Step 4: Simplify right side
    21,723.71x = 439,327,409.32
  5. Step 5: Solve for x
    x = 439,327,409.32/21,723.71
  6. Step 6: Final answer
    x = 20,223.41

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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.