Home / 20,148.76-27,814.44-13,785.58

Finding the Fourth Proportional to 20,148.76, 27,814.44 and 13,785.58

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Solution

The fourth proportional to 20,148.76, 27,814.44 and 13,785.58 is: 19,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.76 : 27,814.44 = 13,785.58 : x
  2. Step 2: Convert to fraction form
    20,148.76/27,814.44 = 13,785.58/x
  3. Step 3: Cross multiply
    20,148.76x = 27,814.44 × 13,785.58
  4. Step 4: Simplify right side
    20,148.76x = 383,438,187.78
  5. Step 5: Solve for x
    x = 383,438,187.78/20,148.76
  6. Step 6: Final answer
    x = 19,030.36

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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.