Home / 31,415.58-47,132.69-11,424.69

Finding the Fourth Proportional to 31,415.58, 47,132.69 and 11,424.69

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Solution

The fourth proportional to 31,415.58, 47,132.69 and 11,424.69 is: 17,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.58 : 47,132.69 = 11,424.69 : x
  2. Step 2: Convert to fraction form
    31,415.58/47,132.69 = 11,424.69/x
  3. Step 3: Cross multiply
    31,415.58x = 47,132.69 × 11,424.69
  4. Step 4: Simplify right side
    31,415.58x = 538,476,314.99
  5. Step 5: Solve for x
    x = 538,476,314.99/31,415.58
  6. Step 6: Final answer
    x = 17,140.42

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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.