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Finding the Fourth Proportional to 17,777.60, 26,666.40 and 16,913.60

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Solution

The fourth proportional to 17,777.60, 26,666.40 and 16,913.60 is: 25,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,777.60 : 26,666.40 = 16,913.60 : x
  2. Step 2: Convert to fraction form
    17,777.60/26,666.40 = 16,913.60/x
  3. Step 3: Cross multiply
    17,777.60x = 26,666.40 × 16,913.60
  4. Step 4: Simplify right side
    17,777.60x = 451,024,823.04
  5. Step 5: Solve for x
    x = 451,024,823.04/17,777.60
  6. Step 6: Final answer
    x = 25,370.40

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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.