Home / 28,454.45-39,269.31-15,710.08

Finding the Fourth Proportional to 28,454.45, 39,269.31 and 15,710.08

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Solution

The fourth proportional to 28,454.45, 39,269.31 and 15,710.08 is: 21,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.45 : 39,269.31 = 15,710.08 : x
  2. Step 2: Convert to fraction form
    28,454.45/39,269.31 = 15,710.08/x
  3. Step 3: Cross multiply
    28,454.45x = 39,269.31 × 15,710.08
  4. Step 4: Simplify right side
    28,454.45x = 616,923,918.19
  5. Step 5: Solve for x
    x = 616,923,918.19/28,454.45
  6. Step 6: Final answer
    x = 21,681.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.