Home / 30,191.10-41,655.26-18,872.11

Finding the Fourth Proportional to 30,191.10, 41,655.26 and 18,872.11

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Solution

The fourth proportional to 30,191.10, 41,655.26 and 18,872.11 is: 26,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.10 : 41,655.26 = 18,872.11 : x
  2. Step 2: Convert to fraction form
    30,191.10/41,655.26 = 18,872.11/x
  3. Step 3: Cross multiply
    30,191.10x = 41,655.26 × 18,872.11
  4. Step 4: Simplify right side
    30,191.10x = 786,122,865.20
  5. Step 5: Solve for x
    x = 786,122,865.20/30,191.10
  6. Step 6: Final answer
    x = 26,038.23

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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.