Home / 28,133.19-38,823.66-15,557.94

Finding the Fourth Proportional to 28,133.19, 38,823.66 and 15,557.94

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Solution

The fourth proportional to 28,133.19, 38,823.66 and 15,557.94 is: 21,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.19 : 38,823.66 = 15,557.94 : x
  2. Step 2: Convert to fraction form
    28,133.19/38,823.66 = 15,557.94/x
  3. Step 3: Cross multiply
    28,133.19x = 38,823.66 × 15,557.94
  4. Step 4: Simplify right side
    28,133.19x = 604,016,172.86
  5. Step 5: Solve for x
    x = 604,016,172.86/28,133.19
  6. Step 6: Final answer
    x = 21,469.88

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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.