Home / 47,428.25-65,428.61-28,297.08

Finding the Fourth Proportional to 47,428.25, 65,428.61 and 28,297.08

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Solution

The fourth proportional to 47,428.25, 65,428.61 and 28,297.08 is: 39,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.25 : 65,428.61 = 28,297.08 : x
  2. Step 2: Convert to fraction form
    47,428.25/65,428.61 = 28,297.08/x
  3. Step 3: Cross multiply
    47,428.25x = 65,428.61 × 28,297.08
  4. Step 4: Simplify right side
    47,428.25x = 1,851,438,629.14
  5. Step 5: Solve for x
    x = 1,851,438,629.14/47,428.25
  6. Step 6: Final answer
    x = 39,036.62

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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.