Home / 30,912.08-46,384.94-13,139.96

Finding the Fourth Proportional to 30,912.08, 46,384.94 and 13,139.96

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Solution

The fourth proportional to 30,912.08, 46,384.94 and 13,139.96 is: 19,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.08 : 46,384.94 = 13,139.96 : x
  2. Step 2: Convert to fraction form
    30,912.08/46,384.94 = 13,139.96/x
  3. Step 3: Cross multiply
    30,912.08x = 46,384.94 × 13,139.96
  4. Step 4: Simplify right side
    30,912.08x = 609,496,256.20
  5. Step 5: Solve for x
    x = 609,496,256.20/30,912.08
  6. Step 6: Final answer
    x = 19,717.09

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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.