Home / 20,412.56-30,637.31-10,558.77

Finding the Fourth Proportional to 20,412.56, 30,637.31 and 10,558.77

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Solution

The fourth proportional to 20,412.56, 30,637.31 and 10,558.77 is: 15,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.56 : 30,637.31 = 10,558.77 : x
  2. Step 2: Convert to fraction form
    20,412.56/30,637.31 = 10,558.77/x
  3. Step 3: Cross multiply
    20,412.56x = 30,637.31 × 10,558.77
  4. Step 4: Simplify right side
    20,412.56x = 323,492,256.91
  5. Step 5: Solve for x
    x = 323,492,256.91/20,412.56
  6. Step 6: Final answer
    x = 15,847.71

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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.