Home / 18,808.54-28,219.83-10,038.58

Finding the Fourth Proportional to 18,808.54, 28,219.83 and 10,038.58

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Solution

The fourth proportional to 18,808.54, 28,219.83 and 10,038.58 is: 15,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.54 : 28,219.83 = 10,038.58 : x
  2. Step 2: Convert to fraction form
    18,808.54/28,219.83 = 10,038.58/x
  3. Step 3: Cross multiply
    18,808.54x = 28,219.83 × 10,038.58
  4. Step 4: Simplify right side
    18,808.54x = 283,287,021.04
  5. Step 5: Solve for x
    x = 283,287,021.04/18,808.54
  6. Step 6: Final answer
    x = 15,061.62

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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.