Home / 27,539.74-38,020.59-18,135.64

Finding the Fourth Proportional to 27,539.74, 38,020.59 and 18,135.64

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Solution

The fourth proportional to 27,539.74, 38,020.59 and 18,135.64 is: 25,037.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,539.74 : 38,020.59 = 18,135.64 : x
  2. Step 2: Convert to fraction form
    27,539.74/38,020.59 = 18,135.64/x
  3. Step 3: Cross multiply
    27,539.74x = 38,020.59 × 18,135.64
  4. Step 4: Simplify right side
    27,539.74x = 689,527,732.83
  5. Step 5: Solve for x
    x = 689,527,732.83/27,539.74
  6. Step 6: Final answer
    x = 25,037.55

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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.