Home / 31,128.22-46,692.74-9,780.24

Finding the Fourth Proportional to 31,128.22, 46,692.74 and 9,780.24

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Solution

The fourth proportional to 31,128.22, 46,692.74 and 9,780.24 is: 14,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.22 : 46,692.74 = 9,780.24 : x
  2. Step 2: Convert to fraction form
    31,128.22/46,692.74 = 9,780.24/x
  3. Step 3: Cross multiply
    31,128.22x = 46,692.74 × 9,780.24
  4. Step 4: Simplify right side
    31,128.22x = 456,665,921.09
  5. Step 5: Solve for x
    x = 456,665,921.09/31,128.22
  6. Step 6: Final answer
    x = 14,670.48

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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.