Home / 46,012.21-69,019.85-12,729.49

Finding the Fourth Proportional to 46,012.21, 69,019.85 and 12,729.49

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Solution

The fourth proportional to 46,012.21, 69,019.85 and 12,729.49 is: 19,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,012.21 : 69,019.85 = 12,729.49 : x
  2. Step 2: Convert to fraction form
    46,012.21/69,019.85 = 12,729.49/x
  3. Step 3: Cross multiply
    46,012.21x = 69,019.85 × 12,729.49
  4. Step 4: Simplify right side
    46,012.21x = 878,587,278.05
  5. Step 5: Solve for x
    x = 878,587,278.05/46,012.21
  6. Step 6: Final answer
    x = 19,094.66

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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.