Home / 31,418.84-47,135.21-10,365.39

Finding the Fourth Proportional to 31,418.84, 47,135.21 and 10,365.39

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Solution

The fourth proportional to 31,418.84, 47,135.21 and 10,365.39 is: 15,550.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.84 : 47,135.21 = 10,365.39 : x
  2. Step 2: Convert to fraction form
    31,418.84/47,135.21 = 10,365.39/x
  3. Step 3: Cross multiply
    31,418.84x = 47,135.21 × 10,365.39
  4. Step 4: Simplify right side
    31,418.84x = 488,574,782.55
  5. Step 5: Solve for x
    x = 488,574,782.55/31,418.84
  6. Step 6: Final answer
    x = 15,550.38

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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.