Home / 27,740.16-38,266.92-18,790.80

Finding the Fourth Proportional to 27,740.16, 38,266.92 and 18,790.80

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Solution

The fourth proportional to 27,740.16, 38,266.92 and 18,790.80 is: 25,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,740.16 : 38,266.92 = 18,790.80 : x
  2. Step 2: Convert to fraction form
    27,740.16/38,266.92 = 18,790.80/x
  3. Step 3: Cross multiply
    27,740.16x = 38,266.92 × 18,790.80
  4. Step 4: Simplify right side
    27,740.16x = 719,066,040.34
  5. Step 5: Solve for x
    x = 719,066,040.34/27,740.16
  6. Step 6: Final answer
    x = 25,921.48

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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.