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Finding the Fourth Proportional to 26,714.70, 40,068.52 and 11,920.19

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Solution

The fourth proportional to 26,714.70, 40,068.52 and 11,920.19 is: 17,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,714.70 : 40,068.52 = 11,920.19 : x
  2. Step 2: Convert to fraction form
    26,714.70/40,068.52 = 11,920.19/x
  3. Step 3: Cross multiply
    26,714.70x = 40,068.52 × 11,920.19
  4. Step 4: Simplify right side
    26,714.70x = 477,624,141.28
  5. Step 5: Solve for x
    x = 477,624,141.28/26,714.70
  6. Step 6: Final answer
    x = 17,878.70

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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.