Home / 30,975.42-42,745.95-16,828.37

Finding the Fourth Proportional to 30,975.42, 42,745.95 and 16,828.37

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Solution

The fourth proportional to 30,975.42, 42,745.95 and 16,828.37 is: 23,223.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.42 : 42,745.95 = 16,828.37 : x
  2. Step 2: Convert to fraction form
    30,975.42/42,745.95 = 16,828.37/x
  3. Step 3: Cross multiply
    30,975.42x = 42,745.95 × 16,828.37
  4. Step 4: Simplify right side
    30,975.42x = 719,344,448.87
  5. Step 5: Solve for x
    x = 719,344,448.87/30,975.42
  6. Step 6: Final answer
    x = 23,223.07

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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.