Home / 36,187.40-54,281.10-12,494.90

Finding the Fourth Proportional to 36,187.40, 54,281.10 and 12,494.90

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Solution

The fourth proportional to 36,187.40, 54,281.10 and 12,494.90 is: 18,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,187.40 : 54,281.10 = 12,494.90 : x
  2. Step 2: Convert to fraction form
    36,187.40/54,281.10 = 12,494.90/x
  3. Step 3: Cross multiply
    36,187.40x = 54,281.10 × 12,494.90
  4. Step 4: Simplify right side
    36,187.40x = 678,236,916.39
  5. Step 5: Solve for x
    x = 678,236,916.39/36,187.40
  6. Step 6: Final answer
    x = 18,742.35

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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.