Home / 31,938.48-47,858.45-20,227.10

Finding the Fourth Proportional to 31,938.48, 47,858.45 and 20,227.10

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Solution

The fourth proportional to 31,938.48, 47,858.45 and 20,227.10 is: 30,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.48 : 47,858.45 = 20,227.10 : x
  2. Step 2: Convert to fraction form
    31,938.48/47,858.45 = 20,227.10/x
  3. Step 3: Cross multiply
    31,938.48x = 47,858.45 × 20,227.10
  4. Step 4: Simplify right side
    31,938.48x = 968,037,313.57
  5. Step 5: Solve for x
    x = 968,037,313.57/31,938.48
  6. Step 6: Final answer
    x = 30,309.44

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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.