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Finding the Fourth Proportional to 25,663, 35,414.94 and 14,485.72

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Solution

The fourth proportional to 25,663, 35,414.94 and 14,485.72 is: 19,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,663 : 35,414.94 = 14,485.72 : x
  2. Step 2: Convert to fraction form
    25,663/35,414.94 = 14,485.72/x
  3. Step 3: Cross multiply
    25,663x = 35,414.94 × 14,485.72
  4. Step 4: Simplify right side
    25,663x = 513,010,904.66
  5. Step 5: Solve for x
    x = 513,010,904.66/25,663
  6. Step 6: Final answer
    x = 19,990.29

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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.