Home / 28,822.36-43,139.58-15,642.04

Finding the Fourth Proportional to 28,822.36, 43,139.58 and 15,642.04

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Solution

The fourth proportional to 28,822.36, 43,139.58 and 15,642.04 is: 23,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.36 : 43,139.58 = 15,642.04 : x
  2. Step 2: Convert to fraction form
    28,822.36/43,139.58 = 15,642.04/x
  3. Step 3: Cross multiply
    28,822.36x = 43,139.58 × 15,642.04
  4. Step 4: Simplify right side
    28,822.36x = 674,791,035.94
  5. Step 5: Solve for x
    x = 674,791,035.94/28,822.36
  6. Step 6: Final answer
    x = 23,412.07

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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.