Home / 21,788.14-30,073.98-14,235.62

Finding the Fourth Proportional to 21,788.14, 30,073.98 and 14,235.62

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Solution

The fourth proportional to 21,788.14, 30,073.98 and 14,235.62 is: 19,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.14 : 30,073.98 = 14,235.62 : x
  2. Step 2: Convert to fraction form
    21,788.14/30,073.98 = 14,235.62/x
  3. Step 3: Cross multiply
    21,788.14x = 30,073.98 × 14,235.62
  4. Step 4: Simplify right side
    21,788.14x = 428,121,751.17
  5. Step 5: Solve for x
    x = 428,121,751.17/21,788.14
  6. Step 6: Final answer
    x = 19,649.30

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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.