Home / 30,742.90-46,084.83-19,618.18

Finding the Fourth Proportional to 30,742.90, 46,084.83 and 19,618.18

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Solution

The fourth proportional to 30,742.90, 46,084.83 and 19,618.18 is: 29,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,742.90 : 46,084.83 = 19,618.18 : x
  2. Step 2: Convert to fraction form
    30,742.90/46,084.83 = 19,618.18/x
  3. Step 3: Cross multiply
    30,742.90x = 46,084.83 × 19,618.18
  4. Step 4: Simplify right side
    30,742.90x = 904,100,490.21
  5. Step 5: Solve for x
    x = 904,100,490.21/30,742.90
  6. Step 6: Final answer
    x = 29,408.43

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1.5x scale

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.