Home / 30,868.29-46,309.93-12,143.52

Finding the Fourth Proportional to 30,868.29, 46,309.93 and 12,143.52

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Solution

The fourth proportional to 30,868.29, 46,309.93 and 12,143.52 is: 18,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.29 : 46,309.93 = 12,143.52 : x
  2. Step 2: Convert to fraction form
    30,868.29/46,309.93 = 12,143.52/x
  3. Step 3: Cross multiply
    30,868.29x = 46,309.93 × 12,143.52
  4. Step 4: Simplify right side
    30,868.29x = 562,365,530.79
  5. Step 5: Solve for x
    x = 562,365,530.79/30,868.29
  6. Step 6: Final answer
    x = 18,218.23

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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.