Home / 28,730.25-43,109.96-13,151.79

Finding the Fourth Proportional to 28,730.25, 43,109.96 and 13,151.79

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Solution

The fourth proportional to 28,730.25, 43,109.96 and 13,151.79 is: 19,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.25 : 43,109.96 = 13,151.79 : x
  2. Step 2: Convert to fraction form
    28,730.25/43,109.96 = 13,151.79/x
  3. Step 3: Cross multiply
    28,730.25x = 43,109.96 × 13,151.79
  4. Step 4: Simplify right side
    28,730.25x = 566,973,075.07
  5. Step 5: Solve for x
    x = 566,973,075.07/28,730.25
  6. Step 6: Final answer
    x = 19,734.36

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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.