Home / 19,340.20-29,015.70-9,479.80

Finding the Fourth Proportional to 19,340.20, 29,015.70 and 9,479.80

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Solution

The fourth proportional to 19,340.20, 29,015.70 and 9,479.80 is: 14,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.20 : 29,015.70 = 9,479.80 : x
  2. Step 2: Convert to fraction form
    19,340.20/29,015.70 = 9,479.80/x
  3. Step 3: Cross multiply
    19,340.20x = 29,015.70 × 9,479.80
  4. Step 4: Simplify right side
    19,340.20x = 275,063,032.86
  5. Step 5: Solve for x
    x = 275,063,032.86/19,340.20
  6. Step 6: Final answer
    x = 14,222.35

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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.