Home / 21,334.32-29,452.42-15,585.32

Finding the Fourth Proportional to 21,334.32, 29,452.42 and 15,585.32

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Solution

The fourth proportional to 21,334.32, 29,452.42 and 15,585.32 is: 21,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.32 : 29,452.42 = 15,585.32 : x
  2. Step 2: Convert to fraction form
    21,334.32/29,452.42 = 15,585.32/x
  3. Step 3: Cross multiply
    21,334.32x = 29,452.42 × 15,585.32
  4. Step 4: Simplify right side
    21,334.32x = 459,025,243.21
  5. Step 5: Solve for x
    x = 459,025,243.21/21,334.32
  6. Step 6: Final answer
    x = 21,515.82

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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.