Home / 28,500.25-39,330.24-15,925

Finding the Fourth Proportional to 28,500.25, 39,330.24 and 15,925

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Solution

The fourth proportional to 28,500.25, 39,330.24 and 15,925 is: 21,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.25 : 39,330.24 = 15,925 : x
  2. Step 2: Convert to fraction form
    28,500.25/39,330.24 = 15,925/x
  3. Step 3: Cross multiply
    28,500.25x = 39,330.24 × 15,925
  4. Step 4: Simplify right side
    28,500.25x = 626,334,072
  5. Step 5: Solve for x
    x = 626,334,072/28,500.25
  6. Step 6: Final answer
    x = 21,976.44

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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.