Home / 27,319.54-40,998.75-21,085.78

Finding the Fourth Proportional to 27,319.54, 40,998.75 and 21,085.78

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Solution

The fourth proportional to 27,319.54, 40,998.75 and 21,085.78 is: 31,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.54 : 40,998.75 = 21,085.78 : x
  2. Step 2: Convert to fraction form
    27,319.54/40,998.75 = 21,085.78/x
  3. Step 3: Cross multiply
    27,319.54x = 40,998.75 × 21,085.78
  4. Step 4: Simplify right side
    27,319.54x = 864,490,622.78
  5. Step 5: Solve for x
    x = 864,490,622.78/27,319.54
  6. Step 6: Final answer
    x = 31,643.67

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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.