Home / 30,840.12-45,989.64-30,559.62

Finding the Fourth Proportional to 30,840.12, 45,989.64 and 30,559.62

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Solution

The fourth proportional to 30,840.12, 45,989.64 and 30,559.62 is: 45,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.12 : 45,989.64 = 30,559.62 : x
  2. Step 2: Convert to fraction form
    30,840.12/45,989.64 = 30,559.62/x
  3. Step 3: Cross multiply
    30,840.12x = 45,989.64 × 30,559.62
  4. Step 4: Simplify right side
    30,840.12x = 1,405,425,922.34
  5. Step 5: Solve for x
    x = 1,405,425,922.34/30,840.12
  6. Step 6: Final answer
    x = 45,571.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.