Home / 31,977.22-47,970.21-10,911.61

Finding the Fourth Proportional to 31,977.22, 47,970.21 and 10,911.61

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Solution

The fourth proportional to 31,977.22, 47,970.21 and 10,911.61 is: 16,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.22 : 47,970.21 = 10,911.61 : x
  2. Step 2: Convert to fraction form
    31,977.22/47,970.21 = 10,911.61/x
  3. Step 3: Cross multiply
    31,977.22x = 47,970.21 × 10,911.61
  4. Step 4: Simplify right side
    31,977.22x = 523,432,223.14
  5. Step 5: Solve for x
    x = 523,432,223.14/31,977.22
  6. Step 6: Final answer
    x = 16,368.91

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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.