Home / 27,966.06-38,595.88-20,880.18

Finding the Fourth Proportional to 27,966.06, 38,595.88 and 20,880.18

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Solution

The fourth proportional to 27,966.06, 38,595.88 and 20,880.18 is: 28,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.06 : 38,595.88 = 20,880.18 : x
  2. Step 2: Convert to fraction form
    27,966.06/38,595.88 = 20,880.18/x
  3. Step 3: Cross multiply
    27,966.06x = 38,595.88 × 20,880.18
  4. Step 4: Simplify right side
    27,966.06x = 805,888,921.66
  5. Step 5: Solve for x
    x = 805,888,921.66/27,966.06
  6. Step 6: Final answer
    x = 28,816.68

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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.