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Finding the Fourth Proportional to 30,365.60, 41,904.60 and 16,937.72

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Solution

The fourth proportional to 30,365.60, 41,904.60 and 16,937.72 is: 23,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.60 : 41,904.60 = 16,937.72 : x
  2. Step 2: Convert to fraction form
    30,365.60/41,904.60 = 16,937.72/x
  3. Step 3: Cross multiply
    30,365.60x = 41,904.60 × 16,937.72
  4. Step 4: Simplify right side
    30,365.60x = 709,768,296.82
  5. Step 5: Solve for x
    x = 709,768,296.82/30,365.60
  6. Step 6: Final answer
    x = 23,374.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.