Home / 27,675.65-38,193.23-15,740.70

Finding the Fourth Proportional to 27,675.65, 38,193.23 and 15,740.70

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Solution

The fourth proportional to 27,675.65, 38,193.23 and 15,740.70 is: 21,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,675.65 : 38,193.23 = 15,740.70 : x
  2. Step 2: Convert to fraction form
    27,675.65/38,193.23 = 15,740.70/x
  3. Step 3: Cross multiply
    27,675.65x = 38,193.23 × 15,740.70
  4. Step 4: Simplify right side
    27,675.65x = 601,188,214.81
  5. Step 5: Solve for x
    x = 601,188,214.81/27,675.65
  6. Step 6: Final answer
    x = 21,722.65

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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.