Home / 43,631.98-65,446.56-12,467.20

Finding the Fourth Proportional to 43,631.98, 65,446.56 and 12,467.20

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Solution

The fourth proportional to 43,631.98, 65,446.56 and 12,467.20 is: 18,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,631.98 : 65,446.56 = 12,467.20 : x
  2. Step 2: Convert to fraction form
    43,631.98/65,446.56 = 12,467.20/x
  3. Step 3: Cross multiply
    43,631.98x = 65,446.56 × 12,467.20
  4. Step 4: Simplify right side
    43,631.98x = 815,935,352.83
  5. Step 5: Solve for x
    x = 815,935,352.83/43,631.98
  6. Step 6: Final answer
    x = 18,700.40

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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.