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Finding the Fourth Proportional to 25,485, 35,169.32 and 14,310.60

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Solution

The fourth proportional to 25,485, 35,169.32 and 14,310.60 is: 19,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485 : 35,169.32 = 14,310.60 : x
  2. Step 2: Convert to fraction form
    25,485/35,169.32 = 14,310.60/x
  3. Step 3: Cross multiply
    25,485x = 35,169.32 × 14,310.60
  4. Step 4: Simplify right side
    25,485x = 503,294,070.79
  5. Step 5: Solve for x
    x = 503,294,070.79/25,485
  6. Step 6: Final answer
    x = 19,748.64

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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.