Home / 20,264.94-27,964.86-12,715.32

Finding the Fourth Proportional to 20,264.94, 27,964.86 and 12,715.32

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Solution

The fourth proportional to 20,264.94, 27,964.86 and 12,715.32 is: 17,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.94 : 27,964.86 = 12,715.32 : x
  2. Step 2: Convert to fraction form
    20,264.94/27,964.86 = 12,715.32/x
  3. Step 3: Cross multiply
    20,264.94x = 27,964.86 × 12,715.32
  4. Step 4: Simplify right side
    20,264.94x = 355,582,143.66
  5. Step 5: Solve for x
    x = 355,582,143.66/20,264.94
  6. Step 6: Final answer
    x = 17,546.67

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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.