Home / 21,878.26-32,646.66-19,522.04

Finding the Fourth Proportional to 21,878.26, 32,646.66 and 19,522.04

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Solution

The fourth proportional to 21,878.26, 32,646.66 and 19,522.04 is: 29,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,878.26 : 32,646.66 = 19,522.04 : x
  2. Step 2: Convert to fraction form
    21,878.26/32,646.66 = 19,522.04/x
  3. Step 3: Cross multiply
    21,878.26x = 32,646.66 × 19,522.04
  4. Step 4: Simplify right side
    21,878.26x = 637,329,402.39
  5. Step 5: Solve for x
    x = 637,329,402.39/21,878.26
  6. Step 6: Final answer
    x = 29,130.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.