Home / 30,122.42-41,545.50-18,173.30

Finding the Fourth Proportional to 30,122.42, 41,545.50 and 18,173.30

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Solution

The fourth proportional to 30,122.42, 41,545.50 and 18,173.30 is: 25,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.42 : 41,545.50 = 18,173.30 : x
  2. Step 2: Convert to fraction form
    30,122.42/41,545.50 = 18,173.30/x
  3. Step 3: Cross multiply
    30,122.42x = 41,545.50 × 18,173.30
  4. Step 4: Simplify right side
    30,122.42x = 755,018,835.15
  5. Step 5: Solve for x
    x = 755,018,835.15/30,122.42
  6. Step 6: Final answer
    x = 25,065.01

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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.