Home / 30,699.84-46,043-10,979.76

Finding the Fourth Proportional to 30,699.84, 46,043 and 10,979.76

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Solution

The fourth proportional to 30,699.84, 46,043 and 10,979.76 is: 16,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699.84 : 46,043 = 10,979.76 : x
  2. Step 2: Convert to fraction form
    30,699.84/46,043 = 10,979.76/x
  3. Step 3: Cross multiply
    30,699.84x = 46,043 × 10,979.76
  4. Step 4: Simplify right side
    30,699.84x = 505,541,089.68
  5. Step 5: Solve for x
    x = 505,541,089.68/30,699.84
  6. Step 6: Final answer
    x = 16,467.22

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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.