Home / 28,652.32-39,539.57-15,904.75

Finding the Fourth Proportional to 28,652.32, 39,539.57 and 15,904.75

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Solution

The fourth proportional to 28,652.32, 39,539.57 and 15,904.75 is: 21,948.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.32 : 39,539.57 = 15,904.75 : x
  2. Step 2: Convert to fraction form
    28,652.32/39,539.57 = 15,904.75/x
  3. Step 3: Cross multiply
    28,652.32x = 39,539.57 × 15,904.75
  4. Step 4: Simplify right side
    28,652.32x = 628,866,975.96
  5. Step 5: Solve for x
    x = 628,866,975.96/28,652.32
  6. Step 6: Final answer
    x = 21,948.21

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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.