Home / 30,317.75-41,839.79-16,889.01

Finding the Fourth Proportional to 30,317.75, 41,839.79 and 16,889.01

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Solution

The fourth proportional to 30,317.75, 41,839.79 and 16,889.01 is: 23,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.75 : 41,839.79 = 16,889.01 : x
  2. Step 2: Convert to fraction form
    30,317.75/41,839.79 = 16,889.01/x
  3. Step 3: Cross multiply
    30,317.75x = 41,839.79 × 16,889.01
  4. Step 4: Simplify right side
    30,317.75x = 706,632,631.71
  5. Step 5: Solve for x
    x = 706,632,631.71/30,317.75
  6. Step 6: Final answer
    x = 23,307.56

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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.