Home / 27,707.72-38,236.10-15,770.79

Finding the Fourth Proportional to 27,707.72, 38,236.10 and 15,770.79

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Solution

The fourth proportional to 27,707.72, 38,236.10 and 15,770.79 is: 21,763.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,707.72 : 38,236.10 = 15,770.79 : x
  2. Step 2: Convert to fraction form
    27,707.72/38,236.10 = 15,770.79/x
  3. Step 3: Cross multiply
    27,707.72x = 38,236.10 × 15,770.79
  4. Step 4: Simplify right side
    27,707.72x = 603,013,424.67
  5. Step 5: Solve for x
    x = 603,013,424.67/27,707.72
  6. Step 6: Final answer
    x = 21,763.38

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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.