Home / 21,522.48-29,714.94-19,280.40

Finding the Fourth Proportional to 21,522.48, 29,714.94 and 19,280.40

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Solution

The fourth proportional to 21,522.48, 29,714.94 and 19,280.40 is: 26,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.48 : 29,714.94 = 19,280.40 : x
  2. Step 2: Convert to fraction form
    21,522.48/29,714.94 = 19,280.40/x
  3. Step 3: Cross multiply
    21,522.48x = 29,714.94 × 19,280.40
  4. Step 4: Simplify right side
    21,522.48x = 572,915,929.18
  5. Step 5: Solve for x
    x = 572,915,929.18/21,522.48
  6. Step 6: Final answer
    x = 26,619.42

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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.