Home / 39,020.48-53,806.44-31,458.80

Finding the Fourth Proportional to 39,020.48, 53,806.44 and 31,458.80

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Solution

The fourth proportional to 39,020.48, 53,806.44 and 31,458.80 is: 43,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,020.48 : 53,806.44 = 31,458.80 : x
  2. Step 2: Convert to fraction form
    39,020.48/53,806.44 = 31,458.80/x
  3. Step 3: Cross multiply
    39,020.48x = 53,806.44 × 31,458.80
  4. Step 4: Simplify right side
    39,020.48x = 1,692,686,034.67
  5. Step 5: Solve for x
    x = 1,692,686,034.67/39,020.48
  6. Step 6: Final answer
    x = 43,379.43

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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.