Home / 28,769.31-43,155.72-9,048.51

Finding the Fourth Proportional to 28,769.31, 43,155.72 and 9,048.51

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Solution

The fourth proportional to 28,769.31, 43,155.72 and 9,048.51 is: 13,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.31 : 43,155.72 = 9,048.51 : x
  2. Step 2: Convert to fraction form
    28,769.31/43,155.72 = 9,048.51/x
  3. Step 3: Cross multiply
    28,769.31x = 43,155.72 × 9,048.51
  4. Step 4: Simplify right side
    28,769.31x = 390,494,963.98
  5. Step 5: Solve for x
    x = 390,494,963.98/28,769.31
  6. Step 6: Final answer
    x = 13,573.32

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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.