Home / 27,780.06-38,322.18-18,824.52

Finding the Fourth Proportional to 27,780.06, 38,322.18 and 18,824.52

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Solution

The fourth proportional to 27,780.06, 38,322.18 and 18,824.52 is: 25,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.06 : 38,322.18 = 18,824.52 : x
  2. Step 2: Convert to fraction form
    27,780.06/38,322.18 = 18,824.52/x
  3. Step 3: Cross multiply
    27,780.06x = 38,322.18 × 18,824.52
  4. Step 4: Simplify right side
    27,780.06x = 721,396,643.85
  5. Step 5: Solve for x
    x = 721,396,643.85/27,780.06
  6. Step 6: Final answer
    x = 25,968.15

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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.