Home / 27,155.53-37,497.45-20,429.47

Finding the Fourth Proportional to 27,155.53, 37,497.45 and 20,429.47

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Solution

The fourth proportional to 27,155.53, 37,497.45 and 20,429.47 is: 28,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.53 : 37,497.45 = 20,429.47 : x
  2. Step 2: Convert to fraction form
    27,155.53/37,497.45 = 20,429.47/x
  3. Step 3: Cross multiply
    27,155.53x = 37,497.45 × 20,429.47
  4. Step 4: Simplify right side
    27,155.53x = 766,053,029.85
  5. Step 5: Solve for x
    x = 766,053,029.85/27,155.53
  6. Step 6: Final answer
    x = 28,209.84

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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.