Home / 30,876.76-46,326.30-12,146.46

Finding the Fourth Proportional to 30,876.76, 46,326.30 and 12,146.46

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Solution

The fourth proportional to 30,876.76, 46,326.30 and 12,146.46 is: 18,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.76 : 46,326.30 = 12,146.46 : x
  2. Step 2: Convert to fraction form
    30,876.76/46,326.30 = 12,146.46/x
  3. Step 3: Cross multiply
    30,876.76x = 46,326.30 × 12,146.46
  4. Step 4: Simplify right side
    30,876.76x = 562,700,549.90
  5. Step 5: Solve for x
    x = 562,700,549.90/30,876.76
  6. Step 6: Final answer
    x = 18,224.08

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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.