Home / 28,695.36-43,045.51-7,918.86

Finding the Fourth Proportional to 28,695.36, 43,045.51 and 7,918.86

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Solution

The fourth proportional to 28,695.36, 43,045.51 and 7,918.86 is: 11,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.36 : 43,045.51 = 7,918.86 : x
  2. Step 2: Convert to fraction form
    28,695.36/43,045.51 = 7,918.86/x
  3. Step 3: Cross multiply
    28,695.36x = 43,045.51 × 7,918.86
  4. Step 4: Simplify right side
    28,695.36x = 340,871,132.29
  5. Step 5: Solve for x
    x = 340,871,132.29/28,695.36
  6. Step 6: Final answer
    x = 11,878.97

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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.