Home / 30,298.11-45,446.50-8,111.49

Finding the Fourth Proportional to 30,298.11, 45,446.50 and 8,111.49

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Solution

The fourth proportional to 30,298.11, 45,446.50 and 8,111.49 is: 12,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,298.11 : 45,446.50 = 8,111.49 : x
  2. Step 2: Convert to fraction form
    30,298.11/45,446.50 = 8,111.49/x
  3. Step 3: Cross multiply
    30,298.11x = 45,446.50 × 8,111.49
  4. Step 4: Simplify right side
    30,298.11x = 368,638,830.29
  5. Step 5: Solve for x
    x = 368,638,830.29/30,298.11
  6. Step 6: Final answer
    x = 12,167.06

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Double scale
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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.