Home / 39,051.05-53,890.37-21,146.00

Finding the Fourth Proportional to 39,051.05, 53,890.37 and 21,146.00

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Solution

The fourth proportional to 39,051.05, 53,890.37 and 21,146.00 is: 29,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,051.05 : 53,890.37 = 21,146.00 : x
  2. Step 2: Convert to fraction form
    39,051.05/53,890.37 = 21,146.00/x
  3. Step 3: Cross multiply
    39,051.05x = 53,890.37 × 21,146.00
  4. Step 4: Simplify right side
    39,051.05x = 1,139,565,523.56
  5. Step 5: Solve for x
    x = 1,139,565,523.56/39,051.05
  6. Step 6: Final answer
    x = 29,181.43

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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.