Home / 30,143.34-45,208.53-18,893.25

Finding the Fourth Proportional to 30,143.34, 45,208.53 and 18,893.25

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Solution

The fourth proportional to 30,143.34, 45,208.53 and 18,893.25 is: 28,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.34 : 45,208.53 = 18,893.25 : x
  2. Step 2: Convert to fraction form
    30,143.34/45,208.53 = 18,893.25/x
  3. Step 3: Cross multiply
    30,143.34x = 45,208.53 × 18,893.25
  4. Step 4: Simplify right side
    30,143.34x = 854,136,059.42
  5. Step 5: Solve for x
    x = 854,136,059.42/30,143.34
  6. Step 6: Final answer
    x = 28,335.81

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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.