Home / 28,664.06-42,985.02-11,131.52

Finding the Fourth Proportional to 28,664.06, 42,985.02 and 11,131.52

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Solution

The fourth proportional to 28,664.06, 42,985.02 and 11,131.52 is: 16,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.06 : 42,985.02 = 11,131.52 : x
  2. Step 2: Convert to fraction form
    28,664.06/42,985.02 = 11,131.52/x
  3. Step 3: Cross multiply
    28,664.06x = 42,985.02 × 11,131.52
  4. Step 4: Simplify right side
    28,664.06x = 478,488,609.83
  5. Step 5: Solve for x
    x = 478,488,609.83/28,664.06
  6. Step 6: Final answer
    x = 16,692.98

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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.