Home / 43,245.59-64,868-13,663.42

Finding the Fourth Proportional to 43,245.59, 64,868 and 13,663.42

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Solution

The fourth proportional to 43,245.59, 64,868 and 13,663.42 is: 20,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,245.59 : 64,868 = 13,663.42 : x
  2. Step 2: Convert to fraction form
    43,245.59/64,868 = 13,663.42/x
  3. Step 3: Cross multiply
    43,245.59x = 64,868 × 13,663.42
  4. Step 4: Simplify right side
    43,245.59x = 886,318,728.56
  5. Step 5: Solve for x
    x = 886,318,728.56/43,245.59
  6. Step 6: Final answer
    x = 20,495.01

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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.