Home / 21,014.93-28,994.86-14,634.38

Finding the Fourth Proportional to 21,014.93, 28,994.86 and 14,634.38

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Solution

The fourth proportional to 21,014.93, 28,994.86 and 14,634.38 is: 20,191.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.93 : 28,994.86 = 14,634.38 : x
  2. Step 2: Convert to fraction form
    21,014.93/28,994.86 = 14,634.38/x
  3. Step 3: Cross multiply
    21,014.93x = 28,994.86 × 14,634.38
  4. Step 4: Simplify right side
    21,014.93x = 424,321,799.29
  5. Step 5: Solve for x
    x = 424,321,799.29/21,014.93
  6. Step 6: Final answer
    x = 20,191.44

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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.