Home / 20,360.50-30,527.65-8,511.10

Finding the Fourth Proportional to 20,360.50, 30,527.65 and 8,511.10

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Solution

The fourth proportional to 20,360.50, 30,527.65 and 8,511.10 is: 12,761.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.50 : 30,527.65 = 8,511.10 : x
  2. Step 2: Convert to fraction form
    20,360.50/30,527.65 = 8,511.10/x
  3. Step 3: Cross multiply
    20,360.50x = 30,527.65 × 8,511.10
  4. Step 4: Simplify right side
    20,360.50x = 259,823,881.92
  5. Step 5: Solve for x
    x = 259,823,881.92/20,360.50
  6. Step 6: Final answer
    x = 12,761.17

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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.