Home / 27,380.78-37,785.45-14,805.50

Finding the Fourth Proportional to 27,380.78, 37,785.45 and 14,805.50

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Solution

The fourth proportional to 27,380.78, 37,785.45 and 14,805.50 is: 20,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.78 : 37,785.45 = 14,805.50 : x
  2. Step 2: Convert to fraction form
    27,380.78/37,785.45 = 14,805.50/x
  3. Step 3: Cross multiply
    27,380.78x = 37,785.45 × 14,805.50
  4. Step 4: Simplify right side
    27,380.78x = 559,432,479.98
  5. Step 5: Solve for x
    x = 559,432,479.98/27,380.78
  6. Step 6: Final answer
    x = 20,431.58

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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.