Home / 20,389.89-30,590.30-16,245.52

Finding the Fourth Proportional to 20,389.89, 30,590.30 and 16,245.52

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Solution

The fourth proportional to 20,389.89, 30,590.30 and 16,245.52 is: 24,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.89 : 30,590.30 = 16,245.52 : x
  2. Step 2: Convert to fraction form
    20,389.89/30,590.30 = 16,245.52/x
  3. Step 3: Cross multiply
    20,389.89x = 30,590.30 × 16,245.52
  4. Step 4: Simplify right side
    20,389.89x = 496,955,330.46
  5. Step 5: Solve for x
    x = 496,955,330.46/20,389.89
  6. Step 6: Final answer
    x = 24,372.63

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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.