Home / 15,515.29-23,261.59-4,979.31

Finding the Fourth Proportional to 15,515.29, 23,261.59 and 4,979.31

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Solution

The fourth proportional to 15,515.29, 23,261.59 and 4,979.31 is: 7,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.29 : 23,261.59 = 4,979.31 : x
  2. Step 2: Convert to fraction form
    15,515.29/23,261.59 = 4,979.31/x
  3. Step 3: Cross multiply
    15,515.29x = 23,261.59 × 4,979.31
  4. Step 4: Simplify right side
    15,515.29x = 115,826,667.70
  5. Step 5: Solve for x
    x = 115,826,667.70/15,515.29
  6. Step 6: Final answer
    x = 7,465.32

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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.