Home / 27,380.72-37,784.71-15,443.11

Finding the Fourth Proportional to 27,380.72, 37,784.71 and 15,443.11

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Solution

The fourth proportional to 27,380.72, 37,784.71 and 15,443.11 is: 21,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.72 : 37,784.71 = 15,443.11 : x
  2. Step 2: Convert to fraction form
    27,380.72/37,784.71 = 15,443.11/x
  3. Step 3: Cross multiply
    27,380.72x = 37,784.71 × 15,443.11
  4. Step 4: Simplify right side
    27,380.72x = 583,513,355.63
  5. Step 5: Solve for x
    x = 583,513,355.63/27,380.72
  6. Step 6: Final answer
    x = 21,311.11

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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.