Home / 20,926.01-31,370.79-8,445.53

Finding the Fourth Proportional to 20,926.01, 31,370.79 and 8,445.53

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Solution

The fourth proportional to 20,926.01, 31,370.79 and 8,445.53 is: 12,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.01 : 31,370.79 = 8,445.53 : x
  2. Step 2: Convert to fraction form
    20,926.01/31,370.79 = 8,445.53/x
  3. Step 3: Cross multiply
    20,926.01x = 31,370.79 × 8,445.53
  4. Step 4: Simplify right side
    20,926.01x = 264,942,948.07
  5. Step 5: Solve for x
    x = 264,942,948.07/20,926.01
  6. Step 6: Final answer
    x = 12,660.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.