Home / 26,956.40-40,346.40-19,838.72

Finding the Fourth Proportional to 26,956.40, 40,346.40 and 19,838.72

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Solution

The fourth proportional to 26,956.40, 40,346.40 and 19,838.72 is: 29,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,956.40 : 40,346.40 = 19,838.72 : x
  2. Step 2: Convert to fraction form
    26,956.40/40,346.40 = 19,838.72/x
  3. Step 3: Cross multiply
    26,956.40x = 40,346.40 × 19,838.72
  4. Step 4: Simplify right side
    26,956.40x = 800,421,107.87
  5. Step 5: Solve for x
    x = 800,421,107.87/26,956.40
  6. Step 6: Final answer
    x = 29,693.18

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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.