Home / 30,090.17-41,531.40-20,019.04

Finding the Fourth Proportional to 30,090.17, 41,531.40 and 20,019.04

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Solution

The fourth proportional to 30,090.17, 41,531.40 and 20,019.04 is: 27,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.17 : 41,531.40 = 20,019.04 : x
  2. Step 2: Convert to fraction form
    30,090.17/41,531.40 = 20,019.04/x
  3. Step 3: Cross multiply
    30,090.17x = 41,531.40 × 20,019.04
  4. Step 4: Simplify right side
    30,090.17x = 831,418,757.86
  5. Step 5: Solve for x
    x = 831,418,757.86/30,090.17
  6. Step 6: Final answer
    x = 27,630.91

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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.