Home / 30,421.77-41,983.68-16,993.32

Finding the Fourth Proportional to 30,421.77, 41,983.68 and 16,993.32

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Solution

The fourth proportional to 30,421.77, 41,983.68 and 16,993.32 is: 23,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.77 : 41,983.68 = 16,993.32 : x
  2. Step 2: Convert to fraction form
    30,421.77/41,983.68 = 16,993.32/x
  3. Step 3: Cross multiply
    30,421.77x = 41,983.68 × 16,993.32
  4. Step 4: Simplify right side
    30,421.77x = 713,442,109.02
  5. Step 5: Solve for x
    x = 713,442,109.02/30,421.77
  6. Step 6: Final answer
    x = 23,451.70

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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.