Home / 31,935.69-47,903.54-12,220.29

Finding the Fourth Proportional to 31,935.69, 47,903.54 and 12,220.29

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Solution

The fourth proportional to 31,935.69, 47,903.54 and 12,220.29 is: 18,330.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.69 : 47,903.54 = 12,220.29 : x
  2. Step 2: Convert to fraction form
    31,935.69/47,903.54 = 12,220.29/x
  3. Step 3: Cross multiply
    31,935.69x = 47,903.54 × 12,220.29
  4. Step 4: Simplify right side
    31,935.69x = 585,395,089.73
  5. Step 5: Solve for x
    x = 585,395,089.73/31,935.69
  6. Step 6: Final answer
    x = 18,330.44

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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.