Home / 21,778.98-32,646.40-14,759.70

Finding the Fourth Proportional to 21,778.98, 32,646.40 and 14,759.70

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Solution

The fourth proportional to 21,778.98, 32,646.40 and 14,759.70 is: 22,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.98 : 32,646.40 = 14,759.70 : x
  2. Step 2: Convert to fraction form
    21,778.98/32,646.40 = 14,759.70/x
  3. Step 3: Cross multiply
    21,778.98x = 32,646.40 × 14,759.70
  4. Step 4: Simplify right side
    21,778.98x = 481,851,070.08
  5. Step 5: Solve for x
    x = 481,851,070.08/21,778.98
  6. Step 6: Final answer
    x = 22,124.59

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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.