Home / 27,818.96-38,390.31-15,072.35

Finding the Fourth Proportional to 27,818.96, 38,390.31 and 15,072.35

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Solution

The fourth proportional to 27,818.96, 38,390.31 and 15,072.35 is: 20,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.96 : 38,390.31 = 15,072.35 : x
  2. Step 2: Convert to fraction form
    27,818.96/38,390.31 = 15,072.35/x
  3. Step 3: Cross multiply
    27,818.96x = 38,390.31 × 15,072.35
  4. Step 4: Simplify right side
    27,818.96x = 578,631,996.98
  5. Step 5: Solve for x
    x = 578,631,996.98/27,818.96
  6. Step 6: Final answer
    x = 20,799.92

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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.