Home / 27,852.36-38,436.78-15,277.08

Finding the Fourth Proportional to 27,852.36, 38,436.78 and 15,277.08

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Solution

The fourth proportional to 27,852.36, 38,436.78 and 15,277.08 is: 21,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,852.36 : 38,436.78 = 15,277.08 : x
  2. Step 2: Convert to fraction form
    27,852.36/38,436.78 = 15,277.08/x
  3. Step 3: Cross multiply
    27,852.36x = 38,436.78 × 15,277.08
  4. Step 4: Simplify right side
    27,852.36x = 587,201,763.00
  5. Step 5: Solve for x
    x = 587,201,763.00/27,852.36
  6. Step 6: Final answer
    x = 21,082.66

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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.