Home / 38,835.63-53,595.12-21,845.22

Finding the Fourth Proportional to 38,835.63, 53,595.12 and 21,845.22

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Solution

The fourth proportional to 38,835.63, 53,595.12 and 21,845.22 is: 30,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,835.63 : 53,595.12 = 21,845.22 : x
  2. Step 2: Convert to fraction form
    38,835.63/53,595.12 = 21,845.22/x
  3. Step 3: Cross multiply
    38,835.63x = 53,595.12 × 21,845.22
  4. Step 4: Simplify right side
    38,835.63x = 1,170,797,187.33
  5. Step 5: Solve for x
    x = 1,170,797,187.33/38,835.63
  6. Step 6: Final answer
    x = 30,147.50

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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.