Home / 22,110.15-30,460.11-15,384.21

Finding the Fourth Proportional to 22,110.15, 30,460.11 and 15,384.21

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Solution

The fourth proportional to 22,110.15, 30,460.11 and 15,384.21 is: 21,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.15 : 30,460.11 = 15,384.21 : x
  2. Step 2: Convert to fraction form
    22,110.15/30,460.11 = 15,384.21/x
  3. Step 3: Cross multiply
    22,110.15x = 30,460.11 × 15,384.21
  4. Step 4: Simplify right side
    22,110.15x = 468,604,728.86
  5. Step 5: Solve for x
    x = 468,604,728.86/22,110.15
  6. Step 6: Final answer
    x = 21,194.10

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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.