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Finding the Fourth Proportional to 28,590.47, 39,455.00 and 16,015.22

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Solution

The fourth proportional to 28,590.47, 39,455.00 and 16,015.22 is: 22,101.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.47 : 39,455.00 = 16,015.22 : x
  2. Step 2: Convert to fraction form
    28,590.47/39,455.00 = 16,015.22/x
  3. Step 3: Cross multiply
    28,590.47x = 39,455.00 × 16,015.22
  4. Step 4: Simplify right side
    28,590.47x = 631,880,435.76
  5. Step 5: Solve for x
    x = 631,880,435.76/28,590.47
  6. Step 6: Final answer
    x = 22,101.09

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