Home / 28,116.24-38,797.08-15,538.80

Finding the Fourth Proportional to 28,116.24, 38,797.08 and 15,538.80

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Solution

The fourth proportional to 28,116.24, 38,797.08 and 15,538.80 is: 21,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.24 : 38,797.08 = 15,538.80 : x
  2. Step 2: Convert to fraction form
    28,116.24/38,797.08 = 15,538.80/x
  3. Step 3: Cross multiply
    28,116.24x = 38,797.08 × 15,538.80
  4. Step 4: Simplify right side
    28,116.24x = 602,860,066.70
  5. Step 5: Solve for x
    x = 602,860,066.70/28,116.24
  6. Step 6: Final answer
    x = 21,441.70

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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.