Home / 19,207.65-28,811.48-13,958.85

Finding the Fourth Proportional to 19,207.65, 28,811.48 and 13,958.85

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Solution

The fourth proportional to 19,207.65, 28,811.48 and 13,958.85 is: 20,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.65 : 28,811.48 = 13,958.85 : x
  2. Step 2: Convert to fraction form
    19,207.65/28,811.48 = 13,958.85/x
  3. Step 3: Cross multiply
    19,207.65x = 28,811.48 × 13,958.85
  4. Step 4: Simplify right side
    19,207.65x = 402,175,057.80
  5. Step 5: Solve for x
    x = 402,175,057.80/19,207.65
  6. Step 6: Final answer
    x = 20,938.28

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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.