Home / 28,769.36-43,061.70-15,423.80

Finding the Fourth Proportional to 28,769.36, 43,061.70 and 15,423.80

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Solution

The fourth proportional to 28,769.36, 43,061.70 and 15,423.80 is: 23,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.36 : 43,061.70 = 15,423.80 : x
  2. Step 2: Convert to fraction form
    28,769.36/43,061.70 = 15,423.80/x
  3. Step 3: Cross multiply
    28,769.36x = 43,061.70 × 15,423.80
  4. Step 4: Simplify right side
    28,769.36x = 664,175,048.46
  5. Step 5: Solve for x
    x = 664,175,048.46/28,769.36
  6. Step 6: Final answer
    x = 23,086.19

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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.