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Finding the Fourth Proportional to 25,912.81, 35,760.81 and 15,302.47

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Solution

The fourth proportional to 25,912.81, 35,760.81 and 15,302.47 is: 21,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,912.81 : 35,760.81 = 15,302.47 : x
  2. Step 2: Convert to fraction form
    25,912.81/35,760.81 = 15,302.47/x
  3. Step 3: Cross multiply
    25,912.81x = 35,760.81 × 15,302.47
  4. Step 4: Simplify right side
    25,912.81x = 547,228,722.20
  5. Step 5: Solve for x
    x = 547,228,722.20/25,912.81
  6. Step 6: Final answer
    x = 21,118.08

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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.