Home / 20,210.43-27,890.69-11,713.18

Finding the Fourth Proportional to 20,210.43, 27,890.69 and 11,713.18

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Solution

The fourth proportional to 20,210.43, 27,890.69 and 11,713.18 is: 16,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.43 : 27,890.69 = 11,713.18 : x
  2. Step 2: Convert to fraction form
    20,210.43/27,890.69 = 11,713.18/x
  3. Step 3: Cross multiply
    20,210.43x = 27,890.69 × 11,713.18
  4. Step 4: Simplify right side
    20,210.43x = 326,688,672.29
  5. Step 5: Solve for x
    x = 326,688,672.29/20,210.43
  6. Step 6: Final answer
    x = 16,164.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.