Home / 21,585.54-29,728.48-18,600.29

Finding the Fourth Proportional to 21,585.54, 29,728.48 and 18,600.29

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Solution

The fourth proportional to 21,585.54, 29,728.48 and 18,600.29 is: 25,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.54 : 29,728.48 = 18,600.29 : x
  2. Step 2: Convert to fraction form
    21,585.54/29,728.48 = 18,600.29/x
  3. Step 3: Cross multiply
    21,585.54x = 29,728.48 × 18,600.29
  4. Step 4: Simplify right side
    21,585.54x = 552,958,349.26
  5. Step 5: Solve for x
    x = 552,958,349.26/21,585.54
  6. Step 6: Final answer
    x = 25,617.07

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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.