Home / 21,614.33-29,808.37-18,439.08

Finding the Fourth Proportional to 21,614.33, 29,808.37 and 18,439.08

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Solution

The fourth proportional to 21,614.33, 29,808.37 and 18,439.08 is: 25,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.33 : 29,808.37 = 18,439.08 : x
  2. Step 2: Convert to fraction form
    21,614.33/29,808.37 = 18,439.08/x
  3. Step 3: Cross multiply
    21,614.33x = 29,808.37 × 18,439.08
  4. Step 4: Simplify right side
    21,614.33x = 549,638,919.10
  5. Step 5: Solve for x
    x = 549,638,919.10/21,614.33
  6. Step 6: Final answer
    x = 25,429.38

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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.