Home / 18,962.23-28,411.75-13,388.62

Finding the Fourth Proportional to 18,962.23, 28,411.75 and 13,388.62

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Solution

The fourth proportional to 18,962.23, 28,411.75 and 13,388.62 is: 20,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.23 : 28,411.75 = 13,388.62 : x
  2. Step 2: Convert to fraction form
    18,962.23/28,411.75 = 13,388.62/x
  3. Step 3: Cross multiply
    18,962.23x = 28,411.75 × 13,388.62
  4. Step 4: Simplify right side
    18,962.23x = 380,394,124.29
  5. Step 5: Solve for x
    x = 380,394,124.29/18,962.23
  6. Step 6: Final answer
    x = 20,060.62

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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.