Home / 21,575.97-29,774.54-12,015.59

Finding the Fourth Proportional to 21,575.97, 29,774.54 and 12,015.59

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Solution

The fourth proportional to 21,575.97, 29,774.54 and 12,015.59 is: 16,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.97 : 29,774.54 = 12,015.59 : x
  2. Step 2: Convert to fraction form
    21,575.97/29,774.54 = 12,015.59/x
  3. Step 3: Cross multiply
    21,575.97x = 29,774.54 × 12,015.59
  4. Step 4: Simplify right side
    21,575.97x = 357,758,646.14
  5. Step 5: Solve for x
    x = 357,758,646.14/21,575.97
  6. Step 6: Final answer
    x = 16,581.35

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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.