Home / 28,445.58-39,232.65-18,375.05

Finding the Fourth Proportional to 28,445.58, 39,232.65 and 18,375.05

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Solution

The fourth proportional to 28,445.58, 39,232.65 and 18,375.05 is: 25,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.58 : 39,232.65 = 18,375.05 : x
  2. Step 2: Convert to fraction form
    28,445.58/39,232.65 = 18,375.05/x
  3. Step 3: Cross multiply
    28,445.58x = 39,232.65 × 18,375.05
  4. Step 4: Simplify right side
    28,445.58x = 720,902,072.37
  5. Step 5: Solve for x
    x = 720,902,072.37/28,445.58
  6. Step 6: Final answer
    x = 25,343.20

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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.