Home / 30,639.09-45,962.96-10,911.81

Finding the Fourth Proportional to 30,639.09, 45,962.96 and 10,911.81

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Solution

The fourth proportional to 30,639.09, 45,962.96 and 10,911.81 is: 16,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,639.09 : 45,962.96 = 10,911.81 : x
  2. Step 2: Convert to fraction form
    30,639.09/45,962.96 = 10,911.81/x
  3. Step 3: Cross multiply
    30,639.09x = 45,962.96 × 10,911.81
  4. Step 4: Simplify right side
    30,639.09x = 501,539,032.00
  5. Step 5: Solve for x
    x = 501,539,032.00/30,639.09
  6. Step 6: Final answer
    x = 16,369.25

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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.