Home / 20,886.69-31,297.23-12,546.93

Finding the Fourth Proportional to 20,886.69, 31,297.23 and 12,546.93

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Solution

The fourth proportional to 20,886.69, 31,297.23 and 12,546.93 is: 18,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.69 : 31,297.23 = 12,546.93 : x
  2. Step 2: Convert to fraction form
    20,886.69/31,297.23 = 12,546.93/x
  3. Step 3: Cross multiply
    20,886.69x = 31,297.23 × 12,546.93
  4. Step 4: Simplify right side
    20,886.69x = 392,684,154.00
  5. Step 5: Solve for x
    x = 392,684,154.00/20,886.69
  6. Step 6: Final answer
    x = 18,800.69

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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.