Home / 21,389.68-32,203.42-18,532

Finding the Fourth Proportional to 21,389.68, 32,203.42 and 18,532

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Solution

The fourth proportional to 21,389.68, 32,203.42 and 18,532 is: 27,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.68 : 32,203.42 = 18,532 : x
  2. Step 2: Convert to fraction form
    21,389.68/32,203.42 = 18,532/x
  3. Step 3: Cross multiply
    21,389.68x = 32,203.42 × 18,532
  4. Step 4: Simplify right side
    21,389.68x = 596,793,779.44
  5. Step 5: Solve for x
    x = 596,793,779.44/21,389.68
  6. Step 6: Final answer
    x = 27,901.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.