Home / 30,950.68-42,714.20-17,339.92

Finding the Fourth Proportional to 30,950.68, 42,714.20 and 17,339.92

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Solution

The fourth proportional to 30,950.68, 42,714.20 and 17,339.92 is: 23,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,950.68 : 42,714.20 = 17,339.92 : x
  2. Step 2: Convert to fraction form
    30,950.68/42,714.20 = 17,339.92/x
  3. Step 3: Cross multiply
    30,950.68x = 42,714.20 × 17,339.92
  4. Step 4: Simplify right side
    30,950.68x = 740,660,810.86
  5. Step 5: Solve for x
    x = 740,660,810.86/30,950.68
  6. Step 6: Final answer
    x = 23,930.36

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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.