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Finding the Fourth Proportional to 21,809.10, 32,750.10 and 14,446.20

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Solution

The fourth proportional to 21,809.10, 32,750.10 and 14,446.20 is: 21,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.10 : 32,750.10 = 14,446.20 : x
  2. Step 2: Convert to fraction form
    21,809.10/32,750.10 = 14,446.20/x
  3. Step 3: Cross multiply
    21,809.10x = 32,750.10 × 14,446.20
  4. Step 4: Simplify right side
    21,809.10x = 473,114,494.62
  5. Step 5: Solve for x
    x = 473,114,494.62/21,809.10
  6. Step 6: Final answer
    x = 21,693.44

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1.5x scale

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.