Home / 20,637.56-30,956.33-19,585.75

Finding the Fourth Proportional to 20,637.56, 30,956.33 and 19,585.75

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Solution

The fourth proportional to 20,637.56, 30,956.33 and 19,585.75 is: 29,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.56 : 30,956.33 = 19,585.75 : x
  2. Step 2: Convert to fraction form
    20,637.56/30,956.33 = 19,585.75/x
  3. Step 3: Cross multiply
    20,637.56x = 30,956.33 × 19,585.75
  4. Step 4: Simplify right side
    20,637.56x = 606,302,940.30
  5. Step 5: Solve for x
    x = 606,302,940.30/20,637.56
  6. Step 6: Final answer
    x = 29,378.62

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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.