Home / 30,929.23-46,410.65-13,400.43

Finding the Fourth Proportional to 30,929.23, 46,410.65 and 13,400.43

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Solution

The fourth proportional to 30,929.23, 46,410.65 and 13,400.43 is: 20,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,929.23 : 46,410.65 = 13,400.43 : x
  2. Step 2: Convert to fraction form
    30,929.23/46,410.65 = 13,400.43/x
  3. Step 3: Cross multiply
    30,929.23x = 46,410.65 × 13,400.43
  4. Step 4: Simplify right side
    30,929.23x = 621,922,666.58
  5. Step 5: Solve for x
    x = 621,922,666.58/30,929.23
  6. Step 6: Final answer
    x = 20,107.93

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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.