Home / 18,670.32-28,005.70-5,522.95

Finding the Fourth Proportional to 18,670.32, 28,005.70 and 5,522.95

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Solution

The fourth proportional to 18,670.32, 28,005.70 and 5,522.95 is: 8,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.32 : 28,005.70 = 5,522.95 : x
  2. Step 2: Convert to fraction form
    18,670.32/28,005.70 = 5,522.95/x
  3. Step 3: Cross multiply
    18,670.32x = 28,005.70 × 5,522.95
  4. Step 4: Simplify right side
    18,670.32x = 154,674,080.82
  5. Step 5: Solve for x
    x = 154,674,080.82/18,670.32
  6. Step 6: Final answer
    x = 8,284.49

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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.