Home / 21,235.60-31,853.68-8,088.69

Finding the Fourth Proportional to 21,235.60, 31,853.68 and 8,088.69

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Solution

The fourth proportional to 21,235.60, 31,853.68 and 8,088.69 is: 12,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.60 : 31,853.68 = 8,088.69 : x
  2. Step 2: Convert to fraction form
    21,235.60/31,853.68 = 8,088.69/x
  3. Step 3: Cross multiply
    21,235.60x = 31,853.68 × 8,088.69
  4. Step 4: Simplify right side
    21,235.60x = 257,654,542.88
  5. Step 5: Solve for x
    x = 257,654,542.88/21,235.60
  6. Step 6: Final answer
    x = 12,133.14

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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.