Home / 20,746.86-31,100.04-8,263.14

Finding the Fourth Proportional to 20,746.86, 31,100.04 and 8,263.14

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Solution

The fourth proportional to 20,746.86, 31,100.04 and 8,263.14 is: 12,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.86 : 31,100.04 = 8,263.14 : x
  2. Step 2: Convert to fraction form
    20,746.86/31,100.04 = 8,263.14/x
  3. Step 3: Cross multiply
    20,746.86x = 31,100.04 × 8,263.14
  4. Step 4: Simplify right side
    20,746.86x = 256,983,984.53
  5. Step 5: Solve for x
    x = 256,983,984.53/20,746.86
  6. Step 6: Final answer
    x = 12,386.64

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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.