Home / 47,192.68-70,838.25-20,915.92

Finding the Fourth Proportional to 47,192.68, 70,838.25 and 20,915.92

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Solution

The fourth proportional to 47,192.68, 70,838.25 and 20,915.92 is: 31,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,192.68 : 70,838.25 = 20,915.92 : x
  2. Step 2: Convert to fraction form
    47,192.68/70,838.25 = 20,915.92/x
  3. Step 3: Cross multiply
    47,192.68x = 70,838.25 × 20,915.92
  4. Step 4: Simplify right side
    47,192.68x = 1,481,647,169.94
  5. Step 5: Solve for x
    x = 1,481,647,169.94/47,192.68
  6. Step 6: Final answer
    x = 31,395.70

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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.