Home / 31,919.14-47,858.14-15,278.77

Finding the Fourth Proportional to 31,919.14, 47,858.14 and 15,278.77

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Solution

The fourth proportional to 31,919.14, 47,858.14 and 15,278.77 is: 22,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.14 : 47,858.14 = 15,278.77 : x
  2. Step 2: Convert to fraction form
    31,919.14/47,858.14 = 15,278.77/x
  3. Step 3: Cross multiply
    31,919.14x = 47,858.14 × 15,278.77
  4. Step 4: Simplify right side
    31,919.14x = 731,213,513.69
  5. Step 5: Solve for x
    x = 731,213,513.69/31,919.14
  6. Step 6: Final answer
    x = 22,908.31

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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.