Home / 45,317.10-67,985.10-13,729.44

Finding the Fourth Proportional to 45,317.10, 67,985.10 and 13,729.44

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Solution

The fourth proportional to 45,317.10, 67,985.10 and 13,729.44 is: 20,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,317.10 : 67,985.10 = 13,729.44 : x
  2. Step 2: Convert to fraction form
    45,317.10/67,985.10 = 13,729.44/x
  3. Step 3: Cross multiply
    45,317.10x = 67,985.10 × 13,729.44
  4. Step 4: Simplify right side
    45,317.10x = 933,397,351.34
  5. Step 5: Solve for x
    x = 933,397,351.34/45,317.10
  6. Step 6: Final answer
    x = 20,597.02

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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.