Home / 30,170.10-41,654.24-18,697.20

Finding the Fourth Proportional to 30,170.10, 41,654.24 and 18,697.20

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Solution

The fourth proportional to 30,170.10, 41,654.24 and 18,697.20 is: 25,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,170.10 : 41,654.24 = 18,697.20 : x
  2. Step 2: Convert to fraction form
    30,170.10/41,654.24 = 18,697.20/x
  3. Step 3: Cross multiply
    30,170.10x = 41,654.24 × 18,697.20
  4. Step 4: Simplify right side
    30,170.10x = 778,817,656.13
  5. Step 5: Solve for x
    x = 778,817,656.13/30,170.10
  6. Step 6: Final answer
    x = 25,814.22

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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.