Home / 20,374.22-28,119.06-12,416.24

Finding the Fourth Proportional to 20,374.22, 28,119.06 and 12,416.24

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Solution

The fourth proportional to 20,374.22, 28,119.06 and 12,416.24 is: 17,136.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.22 : 28,119.06 = 12,416.24 : x
  2. Step 2: Convert to fraction form
    20,374.22/28,119.06 = 12,416.24/x
  3. Step 3: Cross multiply
    20,374.22x = 28,119.06 × 12,416.24
  4. Step 4: Simplify right side
    20,374.22x = 349,132,856.94
  5. Step 5: Solve for x
    x = 349,132,856.94/20,374.22
  6. Step 6: Final answer
    x = 17,136.02

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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.