Home / 27,787.59-38,347.02-15,212.34

Finding the Fourth Proportional to 27,787.59, 38,347.02 and 15,212.34

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Solution

The fourth proportional to 27,787.59, 38,347.02 and 15,212.34 is: 20,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.59 : 38,347.02 = 15,212.34 : x
  2. Step 2: Convert to fraction form
    27,787.59/38,347.02 = 15,212.34/x
  3. Step 3: Cross multiply
    27,787.59x = 38,347.02 × 15,212.34
  4. Step 4: Simplify right side
    27,787.59x = 583,347,906.23
  5. Step 5: Solve for x
    x = 583,347,906.23/27,787.59
  6. Step 6: Final answer
    x = 20,993.11

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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.