Home / 20,179.66-27,818.76-13,362.27

Finding the Fourth Proportional to 20,179.66, 27,818.76 and 13,362.27

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Solution

The fourth proportional to 20,179.66, 27,818.76 and 13,362.27 is: 18,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.66 : 27,818.76 = 13,362.27 : x
  2. Step 2: Convert to fraction form
    20,179.66/27,818.76 = 13,362.27/x
  3. Step 3: Cross multiply
    20,179.66x = 27,818.76 × 13,362.27
  4. Step 4: Simplify right side
    20,179.66x = 371,721,746.04
  5. Step 5: Solve for x
    x = 371,721,746.04/20,179.66
  6. Step 6: Final answer
    x = 18,420.62

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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.