Home / 25,683.96-35,447.94-15,615.56

Finding the Fourth Proportional to 25,683.96, 35,447.94 and 15,615.56

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Solution

The fourth proportional to 25,683.96, 35,447.94 and 15,615.56 is: 21,551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,683.96 : 35,447.94 = 15,615.56 : x
  2. Step 2: Convert to fraction form
    25,683.96/35,447.94 = 15,615.56/x
  3. Step 3: Cross multiply
    25,683.96x = 35,447.94 × 15,615.56
  4. Step 4: Simplify right side
    25,683.96x = 553,539,433.95
  5. Step 5: Solve for x
    x = 553,539,433.95/25,683.96
  6. Step 6: Final answer
    x = 21,551.95

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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.