Home / 36,120.61-54,167.45-12,421.45

Finding the Fourth Proportional to 36,120.61, 54,167.45 and 12,421.45

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Solution

The fourth proportional to 36,120.61, 54,167.45 and 12,421.45 is: 18,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.61 : 54,167.45 = 12,421.45 : x
  2. Step 2: Convert to fraction form
    36,120.61/54,167.45 = 12,421.45/x
  3. Step 3: Cross multiply
    36,120.61x = 54,167.45 × 12,421.45
  4. Step 4: Simplify right side
    36,120.61x = 672,838,074.28
  5. Step 5: Solve for x
    x = 672,838,074.28/36,120.61
  6. Step 6: Final answer
    x = 18,627.54

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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.