Home / 19,230.22-28,872.16-9,876.70

Finding the Fourth Proportional to 19,230.22, 28,872.16 and 9,876.70

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Solution

The fourth proportional to 19,230.22, 28,872.16 and 9,876.70 is: 14,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.22 : 28,872.16 = 9,876.70 : x
  2. Step 2: Convert to fraction form
    19,230.22/28,872.16 = 9,876.70/x
  3. Step 3: Cross multiply
    19,230.22x = 28,872.16 × 9,876.70
  4. Step 4: Simplify right side
    19,230.22x = 285,161,518.31
  5. Step 5: Solve for x
    x = 285,161,518.31/19,230.22
  6. Step 6: Final answer
    x = 14,828.82

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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.