Home / 27,922.40-38,566.96-20,880.08

Finding the Fourth Proportional to 27,922.40, 38,566.96 and 20,880.08

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Solution

The fourth proportional to 27,922.40, 38,566.96 and 20,880.08 is: 28,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,922.40 : 38,566.96 = 20,880.08 : x
  2. Step 2: Convert to fraction form
    27,922.40/38,566.96 = 20,880.08/x
  3. Step 3: Cross multiply
    27,922.40x = 38,566.96 × 20,880.08
  4. Step 4: Simplify right side
    27,922.40x = 805,281,210.16
  5. Step 5: Solve for x
    x = 805,281,210.16/27,922.40
  6. Step 6: Final answer
    x = 28,839.97

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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.