Home / 20,774.98-28,659.50-15,100.93

Finding the Fourth Proportional to 20,774.98, 28,659.50 and 15,100.93

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Solution

The fourth proportional to 20,774.98, 28,659.50 and 15,100.93 is: 20,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.98 : 28,659.50 = 15,100.93 : x
  2. Step 2: Convert to fraction form
    20,774.98/28,659.50 = 15,100.93/x
  3. Step 3: Cross multiply
    20,774.98x = 28,659.50 × 15,100.93
  4. Step 4: Simplify right side
    20,774.98x = 432,784,960.04
  5. Step 5: Solve for x
    x = 432,784,960.04/20,774.98
  6. Step 6: Final answer
    x = 20,832.03

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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.