Home / 28,194.93-38,908.57-15,448.01

Finding the Fourth Proportional to 28,194.93, 38,908.57 and 15,448.01

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Solution

The fourth proportional to 28,194.93, 38,908.57 and 15,448.01 is: 21,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.93 : 38,908.57 = 15,448.01 : x
  2. Step 2: Convert to fraction form
    28,194.93/38,908.57 = 15,448.01/x
  3. Step 3: Cross multiply
    28,194.93x = 38,908.57 × 15,448.01
  4. Step 4: Simplify right side
    28,194.93x = 601,059,706.66
  5. Step 5: Solve for x
    x = 601,059,706.66/28,194.93
  6. Step 6: Final answer
    x = 21,318.01

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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.