Home / 27,783.20-38,340.24-15,207.92

Finding the Fourth Proportional to 27,783.20, 38,340.24 and 15,207.92

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Solution

The fourth proportional to 27,783.20, 38,340.24 and 15,207.92 is: 20,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.20 : 38,340.24 = 15,207.92 : x
  2. Step 2: Convert to fraction form
    27,783.20/38,340.24 = 15,207.92/x
  3. Step 3: Cross multiply
    27,783.20x = 38,340.24 × 15,207.92
  4. Step 4: Simplify right side
    27,783.20x = 583,075,302.70
  5. Step 5: Solve for x
    x = 583,075,302.70/27,783.20
  6. Step 6: Final answer
    x = 20,986.61

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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.