Home / 21,500.58-32,218.05-16,809.45

Finding the Fourth Proportional to 21,500.58, 32,218.05 and 16,809.45

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Solution

The fourth proportional to 21,500.58, 32,218.05 and 16,809.45 is: 25,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.58 : 32,218.05 = 16,809.45 : x
  2. Step 2: Convert to fraction form
    21,500.58/32,218.05 = 16,809.45/x
  3. Step 3: Cross multiply
    21,500.58x = 32,218.05 × 16,809.45
  4. Step 4: Simplify right side
    21,500.58x = 541,567,700.57
  5. Step 5: Solve for x
    x = 541,567,700.57/21,500.58
  6. Step 6: Final answer
    x = 25,188.52

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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.