Home / 28,846.14-43,176.87-20,921.10

Finding the Fourth Proportional to 28,846.14, 43,176.87 and 20,921.10

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Solution

The fourth proportional to 28,846.14, 43,176.87 and 20,921.10 is: 31,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.14 : 43,176.87 = 20,921.10 : x
  2. Step 2: Convert to fraction form
    28,846.14/43,176.87 = 20,921.10/x
  3. Step 3: Cross multiply
    28,846.14x = 43,176.87 × 20,921.10
  4. Step 4: Simplify right side
    28,846.14x = 903,307,614.96
  5. Step 5: Solve for x
    x = 903,307,614.96/28,846.14
  6. Step 6: Final answer
    x = 31,314.68

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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.