Home / 21,314.24-29,449.76-15,334.08

Finding the Fourth Proportional to 21,314.24, 29,449.76 and 15,334.08

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Solution

The fourth proportional to 21,314.24, 29,449.76 and 15,334.08 is: 21,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.24 : 29,449.76 = 15,334.08 : x
  2. Step 2: Convert to fraction form
    21,314.24/29,449.76 = 15,334.08/x
  3. Step 3: Cross multiply
    21,314.24x = 29,449.76 × 15,334.08
  4. Step 4: Simplify right side
    21,314.24x = 451,584,975.82
  5. Step 5: Solve for x
    x = 451,584,975.82/21,314.24
  6. Step 6: Final answer
    x = 21,187.01

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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.