Home / 30,138.26-41,565.48-19,384.90

Finding the Fourth Proportional to 30,138.26, 41,565.48 and 19,384.90

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Solution

The fourth proportional to 30,138.26, 41,565.48 and 19,384.90 is: 26,734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.26 : 41,565.48 = 19,384.90 : x
  2. Step 2: Convert to fraction form
    30,138.26/41,565.48 = 19,384.90/x
  3. Step 3: Cross multiply
    30,138.26x = 41,565.48 × 19,384.90
  4. Step 4: Simplify right side
    30,138.26x = 805,742,673.25
  5. Step 5: Solve for x
    x = 805,742,673.25/30,138.26
  6. Step 6: Final answer
    x = 26,734.88

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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.