Home / 31,475.17-47,212.75-10,409.55

Finding the Fourth Proportional to 31,475.17, 47,212.75 and 10,409.55

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Solution

The fourth proportional to 31,475.17, 47,212.75 and 10,409.55 is: 15,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.17 : 47,212.75 = 10,409.55 : x
  2. Step 2: Convert to fraction form
    31,475.17/47,212.75 = 10,409.55/x
  3. Step 3: Cross multiply
    31,475.17x = 47,212.75 × 10,409.55
  4. Step 4: Simplify right side
    31,475.17x = 491,463,625.82
  5. Step 5: Solve for x
    x = 491,463,625.82/31,475.17
  6. Step 6: Final answer
    x = 15,614.33

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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.