Home / 30,139.52-41,600.72-18,802.28

Finding the Fourth Proportional to 30,139.52, 41,600.72 and 18,802.28

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Solution

The fourth proportional to 30,139.52, 41,600.72 and 18,802.28 is: 25,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.52 : 41,600.72 = 18,802.28 : x
  2. Step 2: Convert to fraction form
    30,139.52/41,600.72 = 18,802.28/x
  3. Step 3: Cross multiply
    30,139.52x = 41,600.72 × 18,802.28
  4. Step 4: Simplify right side
    30,139.52x = 782,188,536.65
  5. Step 5: Solve for x
    x = 782,188,536.65/30,139.52
  6. Step 6: Final answer
    x = 25,952.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.