Home / 19,219.10-28,637.60-17,123

Finding the Fourth Proportional to 19,219.10, 28,637.60 and 17,123

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Solution

The fourth proportional to 19,219.10, 28,637.60 and 17,123 is: 25,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.10 : 28,637.60 = 17,123 : x
  2. Step 2: Convert to fraction form
    19,219.10/28,637.60 = 17,123/x
  3. Step 3: Cross multiply
    19,219.10x = 28,637.60 × 17,123
  4. Step 4: Simplify right side
    19,219.10x = 490,361,624.80
  5. Step 5: Solve for x
    x = 490,361,624.80/19,219.10
  6. Step 6: Final answer
    x = 25,514.29

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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.