Home / 28,903.16-43,354.74-8,126.66

Finding the Fourth Proportional to 28,903.16, 43,354.74 and 8,126.66

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Solution

The fourth proportional to 28,903.16, 43,354.74 and 8,126.66 is: 12,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.16 : 43,354.74 = 8,126.66 : x
  2. Step 2: Convert to fraction form
    28,903.16/43,354.74 = 8,126.66/x
  3. Step 3: Cross multiply
    28,903.16x = 43,354.74 × 8,126.66
  4. Step 4: Simplify right side
    28,903.16x = 352,328,973.96
  5. Step 5: Solve for x
    x = 352,328,973.96/28,903.16
  6. Step 6: Final answer
    x = 12,189.98

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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.