Home / 31,836.06-47,737.61-14,290.78

Finding the Fourth Proportional to 31,836.06, 47,737.61 and 14,290.78

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Solution

The fourth proportional to 31,836.06, 47,737.61 and 14,290.78 is: 21,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.06 : 47,737.61 = 14,290.78 : x
  2. Step 2: Convert to fraction form
    31,836.06/47,737.61 = 14,290.78/x
  3. Step 3: Cross multiply
    31,836.06x = 47,737.61 × 14,290.78
  4. Step 4: Simplify right side
    31,836.06x = 682,207,682.24
  5. Step 5: Solve for x
    x = 682,207,682.24/31,836.06
  6. Step 6: Final answer
    x = 21,428.77

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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.