Home / 34,647.12-51,979.32-13,870.08

Finding the Fourth Proportional to 34,647.12, 51,979.32 and 13,870.08

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Solution

The fourth proportional to 34,647.12, 51,979.32 and 13,870.08 is: 20,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,647.12 : 51,979.32 = 13,870.08 : x
  2. Step 2: Convert to fraction form
    34,647.12/51,979.32 = 13,870.08/x
  3. Step 3: Cross multiply
    34,647.12x = 51,979.32 × 13,870.08
  4. Step 4: Simplify right side
    34,647.12x = 720,957,326.75
  5. Step 5: Solve for x
    x = 720,957,326.75/34,647.12
  6. Step 6: Final answer
    x = 20,808.58

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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.