Home / 28,301.72-42,396.52-19,395.16

Finding the Fourth Proportional to 28,301.72, 42,396.52 and 19,395.16

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Solution

The fourth proportional to 28,301.72, 42,396.52 and 19,395.16 is: 29,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.72 : 42,396.52 = 19,395.16 : x
  2. Step 2: Convert to fraction form
    28,301.72/42,396.52 = 19,395.16/x
  3. Step 3: Cross multiply
    28,301.72x = 42,396.52 × 19,395.16
  4. Step 4: Simplify right side
    28,301.72x = 822,287,288.84
  5. Step 5: Solve for x
    x = 822,287,288.84/28,301.72
  6. Step 6: Final answer
    x = 29,054.32

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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.