Home / 28,194.86-38,908.49-15,447.95

Finding the Fourth Proportional to 28,194.86, 38,908.49 and 15,447.95

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Solution

The fourth proportional to 28,194.86, 38,908.49 and 15,447.95 is: 21,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.86 : 38,908.49 = 15,447.95 : x
  2. Step 2: Convert to fraction form
    28,194.86/38,908.49 = 15,447.95/x
  3. Step 3: Cross multiply
    28,194.86x = 38,908.49 × 15,447.95
  4. Step 4: Simplify right side
    28,194.86x = 601,056,136.31
  5. Step 5: Solve for x
    x = 601,056,136.31/28,194.86
  6. Step 6: Final answer
    x = 21,317.93

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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.