Home / 28,134.33-38,823.80-15,384.97

Finding the Fourth Proportional to 28,134.33, 38,823.80 and 15,384.97

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Solution

The fourth proportional to 28,134.33, 38,823.80 and 15,384.97 is: 21,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.33 : 38,823.80 = 15,384.97 : x
  2. Step 2: Convert to fraction form
    28,134.33/38,823.80 = 15,384.97/x
  3. Step 3: Cross multiply
    28,134.33x = 38,823.80 × 15,384.97
  4. Step 4: Simplify right side
    28,134.33x = 597,302,998.29
  5. Step 5: Solve for x
    x = 597,302,998.29/28,134.33
  6. Step 6: Final answer
    x = 21,230.40

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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.