Home / 27,735.87-38,275.46-15,799.20

Finding the Fourth Proportional to 27,735.87, 38,275.46 and 15,799.20

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Solution

The fourth proportional to 27,735.87, 38,275.46 and 15,799.20 is: 21,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.87 : 38,275.46 = 15,799.20 : x
  2. Step 2: Convert to fraction form
    27,735.87/38,275.46 = 15,799.20/x
  3. Step 3: Cross multiply
    27,735.87x = 38,275.46 × 15,799.20
  4. Step 4: Simplify right side
    27,735.87x = 604,721,568.64
  5. Step 5: Solve for x
    x = 604,721,568.64/27,735.87
  6. Step 6: Final answer
    x = 21,802.87

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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.