Home / 25,988.56-38,982.30-10,402

Finding the Fourth Proportional to 25,988.56, 38,982.30 and 10,402

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Solution

The fourth proportional to 25,988.56, 38,982.30 and 10,402 is: 15,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988.56 : 38,982.30 = 10,402 : x
  2. Step 2: Convert to fraction form
    25,988.56/38,982.30 = 10,402/x
  3. Step 3: Cross multiply
    25,988.56x = 38,982.30 × 10,402
  4. Step 4: Simplify right side
    25,988.56x = 405,493,884.60
  5. Step 5: Solve for x
    x = 405,493,884.60/25,988.56
  6. Step 6: Final answer
    x = 15,602.78

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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.