Home / 30,808.78-46,172.90-15,803.23

Finding the Fourth Proportional to 30,808.78, 46,172.90 and 15,803.23

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Solution

The fourth proportional to 30,808.78, 46,172.90 and 15,803.23 is: 23,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.78 : 46,172.90 = 15,803.23 : x
  2. Step 2: Convert to fraction form
    30,808.78/46,172.90 = 15,803.23/x
  3. Step 3: Cross multiply
    30,808.78x = 46,172.90 × 15,803.23
  4. Step 4: Simplify right side
    30,808.78x = 729,680,958.47
  5. Step 5: Solve for x
    x = 729,680,958.47/30,808.78
  6. Step 6: Final answer
    x = 23,684.19

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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.