Home / 39,710.13-54,800.43-21,804.73

Finding the Fourth Proportional to 39,710.13, 54,800.43 and 21,804.73

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Solution

The fourth proportional to 39,710.13, 54,800.43 and 21,804.73 is: 30,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.13 : 54,800.43 = 21,804.73 : x
  2. Step 2: Convert to fraction form
    39,710.13/54,800.43 = 21,804.73/x
  3. Step 3: Cross multiply
    39,710.13x = 54,800.43 × 21,804.73
  4. Step 4: Simplify right side
    39,710.13x = 1,194,908,580.03
  5. Step 5: Solve for x
    x = 1,194,908,580.03/39,710.13
  6. Step 6: Final answer
    x = 30,090.77

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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.