Home / 39,911.64-55,076.82-22,007

Finding the Fourth Proportional to 39,911.64, 55,076.82 and 22,007

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Solution

The fourth proportional to 39,911.64, 55,076.82 and 22,007 is: 30,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.64 : 55,076.82 = 22,007 : x
  2. Step 2: Convert to fraction form
    39,911.64/55,076.82 = 22,007/x
  3. Step 3: Cross multiply
    39,911.64x = 55,076.82 × 22,007
  4. Step 4: Simplify right side
    39,911.64x = 1,212,075,577.74
  5. Step 5: Solve for x
    x = 1,212,075,577.74/39,911.64
  6. Step 6: Final answer
    x = 30,368.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.