Home / 42,170.26-63,266.34-12,588.10

Finding the Fourth Proportional to 42,170.26, 63,266.34 and 12,588.10

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Solution

The fourth proportional to 42,170.26, 63,266.34 and 12,588.10 is: 18,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170.26 : 63,266.34 = 12,588.10 : x
  2. Step 2: Convert to fraction form
    42,170.26/63,266.34 = 12,588.10/x
  3. Step 3: Cross multiply
    42,170.26x = 63,266.34 × 12,588.10
  4. Step 4: Simplify right side
    42,170.26x = 796,403,014.55
  5. Step 5: Solve for x
    x = 796,403,014.55/42,170.26
  6. Step 6: Final answer
    x = 18,885.42

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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.