Home / 31,307.23-46,968.50-9,120.84

Finding the Fourth Proportional to 31,307.23, 46,968.50 and 9,120.84

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Solution

The fourth proportional to 31,307.23, 46,968.50 and 9,120.84 is: 13,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.23 : 46,968.50 = 9,120.84 : x
  2. Step 2: Convert to fraction form
    31,307.23/46,968.50 = 9,120.84/x
  3. Step 3: Cross multiply
    31,307.23x = 46,968.50 × 9,120.84
  4. Step 4: Simplify right side
    31,307.23x = 428,392,173.54
  5. Step 5: Solve for x
    x = 428,392,173.54/31,307.23
  6. Step 6: Final answer
    x = 13,683.49

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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.