Home / 39,898.04-55,059.26-21,748.79

Finding the Fourth Proportional to 39,898.04, 55,059.26 and 21,748.79

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Solution

The fourth proportional to 39,898.04, 55,059.26 and 21,748.79 is: 30,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.04 : 55,059.26 = 21,748.79 : x
  2. Step 2: Convert to fraction form
    39,898.04/55,059.26 = 21,748.79/x
  3. Step 3: Cross multiply
    39,898.04x = 55,059.26 × 21,748.79
  4. Step 4: Simplify right side
    39,898.04x = 1,197,472,475.32
  5. Step 5: Solve for x
    x = 1,197,472,475.32/39,898.04
  6. Step 6: Final answer
    x = 30,013.32

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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.