Home / 28,719.56-43,048.51-13,895.80

Finding the Fourth Proportional to 28,719.56, 43,048.51 and 13,895.80

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Solution

The fourth proportional to 28,719.56, 43,048.51 and 13,895.80 is: 20,828.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.56 : 43,048.51 = 13,895.80 : x
  2. Step 2: Convert to fraction form
    28,719.56/43,048.51 = 13,895.80/x
  3. Step 3: Cross multiply
    28,719.56x = 43,048.51 × 13,895.80
  4. Step 4: Simplify right side
    28,719.56x = 598,193,663.21
  5. Step 5: Solve for x
    x = 598,193,663.21/28,719.56
  6. Step 6: Final answer
    x = 20,828.79

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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.