Home / 27,759.79-38,309.40-15,184.54

Finding the Fourth Proportional to 27,759.79, 38,309.40 and 15,184.54

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Solution

The fourth proportional to 27,759.79, 38,309.40 and 15,184.54 is: 20,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.79 : 38,309.40 = 15,184.54 : x
  2. Step 2: Convert to fraction form
    27,759.79/38,309.40 = 15,184.54/x
  3. Step 3: Cross multiply
    27,759.79x = 38,309.40 × 15,184.54
  4. Step 4: Simplify right side
    27,759.79x = 581,710,616.68
  5. Step 5: Solve for x
    x = 581,710,616.68/27,759.79
  6. Step 6: Final answer
    x = 20,955.15

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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.