Home / 27,701.16-38,235.78-19,320.36

Finding the Fourth Proportional to 27,701.16, 38,235.78 and 19,320.36

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Solution

The fourth proportional to 27,701.16, 38,235.78 and 19,320.36 is: 26,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,701.16 : 38,235.78 = 19,320.36 : x
  2. Step 2: Convert to fraction form
    27,701.16/38,235.78 = 19,320.36/x
  3. Step 3: Cross multiply
    27,701.16x = 38,235.78 × 19,320.36
  4. Step 4: Simplify right side
    27,701.16x = 738,729,034.48
  5. Step 5: Solve for x
    x = 738,729,034.48/27,701.16
  6. Step 6: Final answer
    x = 26,667.80

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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.