Home / 28,580.50-39,437.14-15,830.52

Finding the Fourth Proportional to 28,580.50, 39,437.14 and 15,830.52

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Solution

The fourth proportional to 28,580.50, 39,437.14 and 15,830.52 is: 21,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.50 : 39,437.14 = 15,830.52 : x
  2. Step 2: Convert to fraction form
    28,580.50/39,437.14 = 15,830.52/x
  3. Step 3: Cross multiply
    28,580.50x = 39,437.14 × 15,830.52
  4. Step 4: Simplify right side
    28,580.50x = 624,310,433.51
  5. Step 5: Solve for x
    x = 624,310,433.51/28,580.50
  6. Step 6: Final answer
    x = 21,843.93

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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.