Home / 30,669.21-46,021.68-12,898.59

Finding the Fourth Proportional to 30,669.21, 46,021.68 and 12,898.59

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Solution

The fourth proportional to 30,669.21, 46,021.68 and 12,898.59 is: 19,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,669.21 : 46,021.68 = 12,898.59 : x
  2. Step 2: Convert to fraction form
    30,669.21/46,021.68 = 12,898.59/x
  3. Step 3: Cross multiply
    30,669.21x = 46,021.68 × 12,898.59
  4. Step 4: Simplify right side
    30,669.21x = 593,614,781.43
  5. Step 5: Solve for x
    x = 593,614,781.43/30,669.21
  6. Step 6: Final answer
    x = 19,355.40

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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.