Home / 39,751.81-54,858.94-21,848.18

Finding the Fourth Proportional to 39,751.81, 54,858.94 and 21,848.18

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Solution

The fourth proportional to 39,751.81, 54,858.94 and 21,848.18 is: 30,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.81 : 54,858.94 = 21,848.18 : x
  2. Step 2: Convert to fraction form
    39,751.81/54,858.94 = 21,848.18/x
  3. Step 3: Cross multiply
    39,751.81x = 54,858.94 × 21,848.18
  4. Step 4: Simplify right side
    39,751.81x = 1,198,567,666.81
  5. Step 5: Solve for x
    x = 1,198,567,666.81/39,751.81
  6. Step 6: Final answer
    x = 30,151.27

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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.