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Finding the Fourth Proportional to 20,573.60, 30,860.40 and 16,345.40

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Solution

The fourth proportional to 20,573.60, 30,860.40 and 16,345.40 is: 24,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.60 : 30,860.40 = 16,345.40 : x
  2. Step 2: Convert to fraction form
    20,573.60/30,860.40 = 16,345.40/x
  3. Step 3: Cross multiply
    20,573.60x = 30,860.40 × 16,345.40
  4. Step 4: Simplify right side
    20,573.60x = 504,425,582.16
  5. Step 5: Solve for x
    x = 504,425,582.16/20,573.60
  6. Step 6: Final answer
    x = 24,518.10

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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.