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Finding the Fourth Proportional to 25,711, 35,479.70 and 14,225.22

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Solution

The fourth proportional to 25,711, 35,479.70 and 14,225.22 is: 19,629.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,711 : 35,479.70 = 14,225.22 : x
  2. Step 2: Convert to fraction form
    25,711/35,479.70 = 14,225.22/x
  3. Step 3: Cross multiply
    25,711x = 35,479.70 × 14,225.22
  4. Step 4: Simplify right side
    25,711x = 504,706,538.03
  5. Step 5: Solve for x
    x = 504,706,538.03/25,711
  6. Step 6: Final answer
    x = 19,629.98

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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.