Home / 31,436.94-47,161.24-10,378.45

Finding the Fourth Proportional to 31,436.94, 47,161.24 and 10,378.45

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Solution

The fourth proportional to 31,436.94, 47,161.24 and 10,378.45 is: 15,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.94 : 47,161.24 = 10,378.45 : x
  2. Step 2: Convert to fraction form
    31,436.94/47,161.24 = 10,378.45/x
  3. Step 3: Cross multiply
    31,436.94x = 47,161.24 × 10,378.45
  4. Step 4: Simplify right side
    31,436.94x = 489,460,571.28
  5. Step 5: Solve for x
    x = 489,460,571.28/31,436.94
  6. Step 6: Final answer
    x = 15,569.60

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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.