Home / 31,930.68-47,897.34-12,210.68

Finding the Fourth Proportional to 31,930.68, 47,897.34 and 12,210.68

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Solution

The fourth proportional to 31,930.68, 47,897.34 and 12,210.68 is: 18,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.68 : 47,897.34 = 12,210.68 : x
  2. Step 2: Convert to fraction form
    31,930.68/47,897.34 = 12,210.68/x
  3. Step 3: Cross multiply
    31,930.68x = 47,897.34 × 12,210.68
  4. Step 4: Simplify right side
    31,930.68x = 584,859,091.59
  5. Step 5: Solve for x
    x = 584,859,091.59/31,930.68
  6. Step 6: Final answer
    x = 18,316.52

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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.