Home / 31,355.82-47,033.55-7,663.49

Finding the Fourth Proportional to 31,355.82, 47,033.55 and 7,663.49

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Solution

The fourth proportional to 31,355.82, 47,033.55 and 7,663.49 is: 11,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.82 : 47,033.55 = 7,663.49 : x
  2. Step 2: Convert to fraction form
    31,355.82/47,033.55 = 7,663.49/x
  3. Step 3: Cross multiply
    31,355.82x = 47,033.55 × 7,663.49
  4. Step 4: Simplify right side
    31,355.82x = 360,441,140.09
  5. Step 5: Solve for x
    x = 360,441,140.09/31,355.82
  6. Step 6: Final answer
    x = 11,495.19

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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.