Home / 31,338.48-47,028.70-11,617.20

Finding the Fourth Proportional to 31,338.48, 47,028.70 and 11,617.20

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Solution

The fourth proportional to 31,338.48, 47,028.70 and 11,617.20 is: 17,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.48 : 47,028.70 = 11,617.20 : x
  2. Step 2: Convert to fraction form
    31,338.48/47,028.70 = 11,617.20/x
  3. Step 3: Cross multiply
    31,338.48x = 47,028.70 × 11,617.20
  4. Step 4: Simplify right side
    31,338.48x = 546,341,813.64
  5. Step 5: Solve for x
    x = 546,341,813.64/31,338.48
  6. Step 6: Final answer
    x = 17,433.58

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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.