Home / 30,709.12-46,072.32-10,990.48

Finding the Fourth Proportional to 30,709.12, 46,072.32 and 10,990.48

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Solution

The fourth proportional to 30,709.12, 46,072.32 and 10,990.48 is: 16,488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,709.12 : 46,072.32 = 10,990.48 : x
  2. Step 2: Convert to fraction form
    30,709.12/46,072.32 = 10,990.48/x
  3. Step 3: Cross multiply
    30,709.12x = 46,072.32 × 10,990.48
  4. Step 4: Simplify right side
    30,709.12x = 506,356,911.51
  5. Step 5: Solve for x
    x = 506,356,911.51/30,709.12
  6. Step 6: Final answer
    x = 16,488.81

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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.