Home / 30,119.27-41,564.64-16,690.40

Finding the Fourth Proportional to 30,119.27, 41,564.64 and 16,690.40

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Solution

The fourth proportional to 30,119.27, 41,564.64 and 16,690.40 is: 23,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.27 : 41,564.64 = 16,690.40 : x
  2. Step 2: Convert to fraction form
    30,119.27/41,564.64 = 16,690.40/x
  3. Step 3: Cross multiply
    30,119.27x = 41,564.64 × 16,690.40
  4. Step 4: Simplify right side
    30,119.27x = 693,730,467.46
  5. Step 5: Solve for x
    x = 693,730,467.46/30,119.27
  6. Step 6: Final answer
    x = 23,032.78

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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.