Home / 30,442.64-45,673.18-21,575.12

Finding the Fourth Proportional to 30,442.64, 45,673.18 and 21,575.12

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Solution

The fourth proportional to 30,442.64, 45,673.18 and 21,575.12 is: 32,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,442.64 : 45,673.18 = 21,575.12 : x
  2. Step 2: Convert to fraction form
    30,442.64/45,673.18 = 21,575.12/x
  3. Step 3: Cross multiply
    30,442.64x = 45,673.18 × 21,575.12
  4. Step 4: Simplify right side
    30,442.64x = 985,404,056.98
  5. Step 5: Solve for x
    x = 985,404,056.98/30,442.64
  6. Step 6: Final answer
    x = 32,369.21

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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.