Home / 20,603.32-30,894.62-10,074.12

Finding the Fourth Proportional to 20,603.32, 30,894.62 and 10,074.12

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Solution

The fourth proportional to 20,603.32, 30,894.62 and 10,074.12 is: 15,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.32 : 30,894.62 = 10,074.12 : x
  2. Step 2: Convert to fraction form
    20,603.32/30,894.62 = 10,074.12/x
  3. Step 3: Cross multiply
    20,603.32x = 30,894.62 × 10,074.12
  4. Step 4: Simplify right side
    20,603.32x = 311,236,109.23
  5. Step 5: Solve for x
    x = 311,236,109.23/20,603.32
  6. Step 6: Final answer
    x = 15,106.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.