Home / 20,846.21-28,793.02-15,171.96

Finding the Fourth Proportional to 20,846.21, 28,793.02 and 15,171.96

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Solution

The fourth proportional to 20,846.21, 28,793.02 and 15,171.96 is: 20,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.21 : 28,793.02 = 15,171.96 : x
  2. Step 2: Convert to fraction form
    20,846.21/28,793.02 = 15,171.96/x
  3. Step 3: Cross multiply
    20,846.21x = 28,793.02 × 15,171.96
  4. Step 4: Simplify right side
    20,846.21x = 436,846,547.72
  5. Step 5: Solve for x
    x = 436,846,547.72/20,846.21
  6. Step 6: Final answer
    x = 20,955.68

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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.