Home / 25,728.79-38,611.65-10,948.09

Finding the Fourth Proportional to 25,728.79, 38,611.65 and 10,948.09

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Solution

The fourth proportional to 25,728.79, 38,611.65 and 10,948.09 is: 16,429.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.79 : 38,611.65 = 10,948.09 : x
  2. Step 2: Convert to fraction form
    25,728.79/38,611.65 = 10,948.09/x
  3. Step 3: Cross multiply
    25,728.79x = 38,611.65 × 10,948.09
  4. Step 4: Simplify right side
    25,728.79x = 422,723,819.25
  5. Step 5: Solve for x
    x = 422,723,819.25/25,728.79
  6. Step 6: Final answer
    x = 16,429.99

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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.