Home / 27,555.96-38,030.20-15,618.02

Finding the Fourth Proportional to 27,555.96, 38,030.20 and 15,618.02

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Solution

The fourth proportional to 27,555.96, 38,030.20 and 15,618.02 is: 21,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.96 : 38,030.20 = 15,618.02 : x
  2. Step 2: Convert to fraction form
    27,555.96/38,030.20 = 15,618.02/x
  3. Step 3: Cross multiply
    27,555.96x = 38,030.20 × 15,618.02
  4. Step 4: Simplify right side
    27,555.96x = 593,956,234.05
  5. Step 5: Solve for x
    x = 593,956,234.05/27,555.96
  6. Step 6: Final answer
    x = 21,554.55

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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.