Home / 18,818.48-28,108.52-17,738.88

Finding the Fourth Proportional to 18,818.48, 28,108.52 and 17,738.88

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Solution

The fourth proportional to 18,818.48, 28,108.52 and 17,738.88 is: 26,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.48 : 28,108.52 = 17,738.88 : x
  2. Step 2: Convert to fraction form
    18,818.48/28,108.52 = 17,738.88/x
  3. Step 3: Cross multiply
    18,818.48x = 28,108.52 × 17,738.88
  4. Step 4: Simplify right side
    18,818.48x = 498,613,663.26
  5. Step 5: Solve for x
    x = 498,613,663.26/18,818.48
  6. Step 6: Final answer
    x = 26,495.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.