Home / 30,158.67-41,617.98-18,219.93

Finding the Fourth Proportional to 30,158.67, 41,617.98 and 18,219.93

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Solution

The fourth proportional to 30,158.67, 41,617.98 and 18,219.93 is: 25,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.67 : 41,617.98 = 18,219.93 : x
  2. Step 2: Convert to fraction form
    30,158.67/41,617.98 = 18,219.93/x
  3. Step 3: Cross multiply
    30,158.67x = 41,617.98 × 18,219.93
  4. Step 4: Simplify right side
    30,158.67x = 758,276,682.34
  5. Step 5: Solve for x
    x = 758,276,682.34/30,158.67
  6. Step 6: Final answer
    x = 25,142.91

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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.