Home / 19,930.08-27,492-12,465.12

Finding the Fourth Proportional to 19,930.08, 27,492 and 12,465.12

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Solution

The fourth proportional to 19,930.08, 27,492 and 12,465.12 is: 17,194.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.08 : 27,492 = 12,465.12 : x
  2. Step 2: Convert to fraction form
    19,930.08/27,492 = 12,465.12/x
  3. Step 3: Cross multiply
    19,930.08x = 27,492 × 12,465.12
  4. Step 4: Simplify right side
    19,930.08x = 342,691,079.04
  5. Step 5: Solve for x
    x = 342,691,079.04/19,930.08
  6. Step 6: Final answer
    x = 17,194.67

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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.