Home / 27,787.85-38,347.23-15,212.60

Finding the Fourth Proportional to 27,787.85, 38,347.23 and 15,212.60

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Solution

The fourth proportional to 27,787.85, 38,347.23 and 15,212.60 is: 20,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.85 : 38,347.23 = 15,212.60 : x
  2. Step 2: Convert to fraction form
    27,787.85/38,347.23 = 15,212.60/x
  3. Step 3: Cross multiply
    27,787.85x = 38,347.23 × 15,212.60
  4. Step 4: Simplify right side
    27,787.85x = 583,360,803.30
  5. Step 5: Solve for x
    x = 583,360,803.30/27,787.85
  6. Step 6: Final answer
    x = 20,993.38

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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.