Home / 36,113.60-54,176.44-12,420.18

Finding the Fourth Proportional to 36,113.60, 54,176.44 and 12,420.18

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Solution

The fourth proportional to 36,113.60, 54,176.44 and 12,420.18 is: 18,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,113.60 : 54,176.44 = 12,420.18 : x
  2. Step 2: Convert to fraction form
    36,113.60/54,176.44 = 12,420.18/x
  3. Step 3: Cross multiply
    36,113.60x = 54,176.44 × 12,420.18
  4. Step 4: Simplify right side
    36,113.60x = 672,881,136.56
  5. Step 5: Solve for x
    x = 672,881,136.56/36,113.60
  6. Step 6: Final answer
    x = 18,632.35

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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.