Home / 19,345.65-28,999.92-12,303.84

Finding the Fourth Proportional to 19,345.65, 28,999.92 and 12,303.84

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Solution

The fourth proportional to 19,345.65, 28,999.92 and 12,303.84 is: 18,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.65 : 28,999.92 = 12,303.84 : x
  2. Step 2: Convert to fraction form
    19,345.65/28,999.92 = 12,303.84/x
  3. Step 3: Cross multiply
    19,345.65x = 28,999.92 × 12,303.84
  4. Step 4: Simplify right side
    19,345.65x = 356,810,375.69
  5. Step 5: Solve for x
    x = 356,810,375.69/19,345.65
  6. Step 6: Final answer
    x = 18,443.96

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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.