Home / 30,807.03-42,514.34-17,375.72

Finding the Fourth Proportional to 30,807.03, 42,514.34 and 17,375.72

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Solution

The fourth proportional to 30,807.03, 42,514.34 and 17,375.72 is: 23,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.03 : 42,514.34 = 17,375.72 : x
  2. Step 2: Convert to fraction form
    30,807.03/42,514.34 = 17,375.72/x
  3. Step 3: Cross multiply
    30,807.03x = 42,514.34 × 17,375.72
  4. Step 4: Simplify right side
    30,807.03x = 738,716,968.37
  5. Step 5: Solve for x
    x = 738,716,968.37/30,807.03
  6. Step 6: Final answer
    x = 23,978.84

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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.