Home / 35,486.07-48,971.12-20,378.52

Finding the Fourth Proportional to 35,486.07, 48,971.12 and 20,378.52

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Solution

The fourth proportional to 35,486.07, 48,971.12 and 20,378.52 is: 28,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,486.07 : 48,971.12 = 20,378.52 : x
  2. Step 2: Convert to fraction form
    35,486.07/48,971.12 = 20,378.52/x
  3. Step 3: Cross multiply
    35,486.07x = 48,971.12 × 20,378.52
  4. Step 4: Simplify right side
    35,486.07x = 997,958,846.45
  5. Step 5: Solve for x
    x = 997,958,846.45/35,486.07
  6. Step 6: Final answer
    x = 28,122.55

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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.