Home / 22,109.90-30,512.30-12,038.51

Finding the Fourth Proportional to 22,109.90, 30,512.30 and 12,038.51

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Solution

The fourth proportional to 22,109.90, 30,512.30 and 12,038.51 is: 16,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.90 : 30,512.30 = 12,038.51 : x
  2. Step 2: Convert to fraction form
    22,109.90/30,512.30 = 12,038.51/x
  3. Step 3: Cross multiply
    22,109.90x = 30,512.30 × 12,038.51
  4. Step 4: Simplify right side
    22,109.90x = 367,322,415.92
  5. Step 5: Solve for x
    x = 367,322,415.92/22,109.90
  6. Step 6: Final answer
    x = 16,613.49

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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.