Home / 31,545.37-47,286.13-20,459.10

Finding the Fourth Proportional to 31,545.37, 47,286.13 and 20,459.10

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Solution

The fourth proportional to 31,545.37, 47,286.13 and 20,459.10 is: 30,667.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.37 : 47,286.13 = 20,459.10 : x
  2. Step 2: Convert to fraction form
    31,545.37/47,286.13 = 20,459.10/x
  3. Step 3: Cross multiply
    31,545.37x = 47,286.13 × 20,459.10
  4. Step 4: Simplify right side
    31,545.37x = 967,431,662.28
  5. Step 5: Solve for x
    x = 967,431,662.28/31,545.37
  6. Step 6: Final answer
    x = 30,667.94

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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.