Home / 27,700.81-38,222.66-15,764.34

Finding the Fourth Proportional to 27,700.81, 38,222.66 and 15,764.34

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Solution

The fourth proportional to 27,700.81, 38,222.66 and 15,764.34 is: 21,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.81 : 38,222.66 = 15,764.34 : x
  2. Step 2: Convert to fraction form
    27,700.81/38,222.66 = 15,764.34/x
  3. Step 3: Cross multiply
    27,700.81x = 38,222.66 × 15,764.34
  4. Step 4: Simplify right side
    27,700.81x = 602,555,190.69
  5. Step 5: Solve for x
    x = 602,555,190.69/27,700.81
  6. Step 6: Final answer
    x = 21,752.26

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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.