Home / 30,429.09-45,647.28-11,704.77

Finding the Fourth Proportional to 30,429.09, 45,647.28 and 11,704.77

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Solution

The fourth proportional to 30,429.09, 45,647.28 and 11,704.77 is: 17,558.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.09 : 45,647.28 = 11,704.77 : x
  2. Step 2: Convert to fraction form
    30,429.09/45,647.28 = 11,704.77/x
  3. Step 3: Cross multiply
    30,429.09x = 45,647.28 × 11,704.77
  4. Step 4: Simplify right side
    30,429.09x = 534,290,913.53
  5. Step 5: Solve for x
    x = 534,290,913.53/30,429.09
  6. Step 6: Final answer
    x = 17,558.56

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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.