Home / 30,871.22-46,275.02-12,143.66

Finding the Fourth Proportional to 30,871.22, 46,275.02 and 12,143.66

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Solution

The fourth proportional to 30,871.22, 46,275.02 and 12,143.66 is: 18,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.22 : 46,275.02 = 12,143.66 : x
  2. Step 2: Convert to fraction form
    30,871.22/46,275.02 = 12,143.66/x
  3. Step 3: Cross multiply
    30,871.22x = 46,275.02 × 12,143.66
  4. Step 4: Simplify right side
    30,871.22x = 561,948,109.37
  5. Step 5: Solve for x
    x = 561,948,109.37/30,871.22
  6. Step 6: Final answer
    x = 18,202.98

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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.