Home / 34,279.32-47,297.78-21,696.76

Finding the Fourth Proportional to 34,279.32, 47,297.78 and 21,696.76

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Solution

The fourth proportional to 34,279.32, 47,297.78 and 21,696.76 is: 29,936.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,279.32 : 47,297.78 = 21,696.76 : x
  2. Step 2: Convert to fraction form
    34,279.32/47,297.78 = 21,696.76/x
  3. Step 3: Cross multiply
    34,279.32x = 47,297.78 × 21,696.76
  4. Step 4: Simplify right side
    34,279.32x = 1,026,208,581.19
  5. Step 5: Solve for x
    x = 1,026,208,581.19/34,279.32
  6. Step 6: Final answer
    x = 29,936.67

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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.