Home / 31,411.94-47,115.09-10,351.80

Finding the Fourth Proportional to 31,411.94, 47,115.09 and 10,351.80

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Solution

The fourth proportional to 31,411.94, 47,115.09 and 10,351.80 is: 15,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.94 : 47,115.09 = 10,351.80 : x
  2. Step 2: Convert to fraction form
    31,411.94/47,115.09 = 10,351.80/x
  3. Step 3: Cross multiply
    31,411.94x = 47,115.09 × 10,351.80
  4. Step 4: Simplify right side
    31,411.94x = 487,725,988.66
  5. Step 5: Solve for x
    x = 487,725,988.66/31,411.94
  6. Step 6: Final answer
    x = 15,526.77

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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.