Home / 21,689.60-32,518.04-11,837.28

Finding the Fourth Proportional to 21,689.60, 32,518.04 and 11,837.28

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Solution

The fourth proportional to 21,689.60, 32,518.04 and 11,837.28 is: 17,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689.60 : 32,518.04 = 11,837.28 : x
  2. Step 2: Convert to fraction form
    21,689.60/32,518.04 = 11,837.28/x
  3. Step 3: Cross multiply
    21,689.60x = 32,518.04 × 11,837.28
  4. Step 4: Simplify right side
    21,689.60x = 384,925,144.53
  5. Step 5: Solve for x
    x = 384,925,144.53/21,689.60
  6. Step 6: Final answer
    x = 17,746.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.