Home / 20,841.86-31,263.25-7,515.93

Finding the Fourth Proportional to 20,841.86, 31,263.25 and 7,515.93

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Solution

The fourth proportional to 20,841.86, 31,263.25 and 7,515.93 is: 11,274.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.86 : 31,263.25 = 7,515.93 : x
  2. Step 2: Convert to fraction form
    20,841.86/31,263.25 = 7,515.93/x
  3. Step 3: Cross multiply
    20,841.86x = 31,263.25 × 7,515.93
  4. Step 4: Simplify right side
    20,841.86x = 234,972,291.29
  5. Step 5: Solve for x
    x = 234,972,291.29/20,841.86
  6. Step 6: Final answer
    x = 11,274.06

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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.