Home / 19,339.65-28,954.89-12,302.28

Finding the Fourth Proportional to 19,339.65, 28,954.89 and 12,302.28

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Solution

The fourth proportional to 19,339.65, 28,954.89 and 12,302.28 is: 18,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.65 : 28,954.89 = 12,302.28 : x
  2. Step 2: Convert to fraction form
    19,339.65/28,954.89 = 12,302.28/x
  3. Step 3: Cross multiply
    19,339.65x = 28,954.89 × 12,302.28
  4. Step 4: Simplify right side
    19,339.65x = 356,211,164.15
  5. Step 5: Solve for x
    x = 356,211,164.15/19,339.65
  6. Step 6: Final answer
    x = 18,418.70

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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.