Home / 30,219.93-45,360.90-20,194.38

Finding the Fourth Proportional to 30,219.93, 45,360.90 and 20,194.38

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Solution

The fourth proportional to 30,219.93, 45,360.90 and 20,194.38 is: 30,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.93 : 45,360.90 = 20,194.38 : x
  2. Step 2: Convert to fraction form
    30,219.93/45,360.90 = 20,194.38/x
  3. Step 3: Cross multiply
    30,219.93x = 45,360.90 × 20,194.38
  4. Step 4: Simplify right side
    30,219.93x = 916,035,251.74
  5. Step 5: Solve for x
    x = 916,035,251.74/30,219.93
  6. Step 6: Final answer
    x = 30,312.29

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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.