Home / 39,898.01-55,062.54-21,996.51

Finding the Fourth Proportional to 39,898.01, 55,062.54 and 21,996.51

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Solution

The fourth proportional to 39,898.01, 55,062.54 and 21,996.51 is: 30,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.01 : 55,062.54 = 21,996.51 : x
  2. Step 2: Convert to fraction form
    39,898.01/55,062.54 = 21,996.51/x
  3. Step 3: Cross multiply
    39,898.01x = 55,062.54 × 21,996.51
  4. Step 4: Simplify right side
    39,898.01x = 1,211,183,711.74
  5. Step 5: Solve for x
    x = 1,211,183,711.74/39,898.01
  6. Step 6: Final answer
    x = 30,357.00

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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.