Home / 28,683.29-39,581.81-15,937.26

Finding the Fourth Proportional to 28,683.29, 39,581.81 and 15,937.26

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Solution

The fourth proportional to 28,683.29, 39,581.81 and 15,937.26 is: 21,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.29 : 39,581.81 = 15,937.26 : x
  2. Step 2: Convert to fraction form
    28,683.29/39,581.81 = 15,937.26/x
  3. Step 3: Cross multiply
    28,683.29x = 39,581.81 × 15,937.26
  4. Step 4: Simplify right side
    28,683.29x = 630,825,517.55
  5. Step 5: Solve for x
    x = 630,825,517.55/28,683.29
  6. Step 6: Final answer
    x = 21,992.79

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1.5x scale

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.