Home / 17,985.32-26,981.22-5,505.12

Finding the Fourth Proportional to 17,985.32, 26,981.22 and 5,505.12

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Solution

The fourth proportional to 17,985.32, 26,981.22 and 5,505.12 is: 8,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.32 : 26,981.22 = 5,505.12 : x
  2. Step 2: Convert to fraction form
    17,985.32/26,981.22 = 5,505.12/x
  3. Step 3: Cross multiply
    17,985.32x = 26,981.22 × 5,505.12
  4. Step 4: Simplify right side
    17,985.32x = 148,534,853.85
  5. Step 5: Solve for x
    x = 148,534,853.85/17,985.32
  6. Step 6: Final answer
    x = 8,258.67

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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.