Home / 28,905.66-43,342.02-11,365.92

Finding the Fourth Proportional to 28,905.66, 43,342.02 and 11,365.92

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Solution

The fourth proportional to 28,905.66, 43,342.02 and 11,365.92 is: 17,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.66 : 43,342.02 = 11,365.92 : x
  2. Step 2: Convert to fraction form
    28,905.66/43,342.02 = 11,365.92/x
  3. Step 3: Cross multiply
    28,905.66x = 43,342.02 × 11,365.92
  4. Step 4: Simplify right side
    28,905.66x = 492,621,931.96
  5. Step 5: Solve for x
    x = 492,621,931.96/28,905.66
  6. Step 6: Final answer
    x = 17,042.40

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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.