Home / 18,890.08-28,324.88-12,225.68

Finding the Fourth Proportional to 18,890.08, 28,324.88 and 12,225.68

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Solution

The fourth proportional to 18,890.08, 28,324.88 and 12,225.68 is: 18,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.08 : 28,324.88 = 12,225.68 : x
  2. Step 2: Convert to fraction form
    18,890.08/28,324.88 = 12,225.68/x
  3. Step 3: Cross multiply
    18,890.08x = 28,324.88 × 12,225.68
  4. Step 4: Simplify right side
    18,890.08x = 346,290,918.92
  5. Step 5: Solve for x
    x = 346,290,918.92/18,890.08
  6. Step 6: Final answer
    x = 18,331.89

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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.