Home / 46,209.06-69,305.24-12,920.90

Finding the Fourth Proportional to 46,209.06, 69,305.24 and 12,920.90

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Solution

The fourth proportional to 46,209.06, 69,305.24 and 12,920.90 is: 19,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,209.06 : 69,305.24 = 12,920.90 : x
  2. Step 2: Convert to fraction form
    46,209.06/69,305.24 = 12,920.90/x
  3. Step 3: Cross multiply
    46,209.06x = 69,305.24 × 12,920.90
  4. Step 4: Simplify right side
    46,209.06x = 895,486,075.52
  5. Step 5: Solve for x
    x = 895,486,075.52/46,209.06
  6. Step 6: Final answer
    x = 19,379.02

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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.