Home / 38,580.04-53,243.94-21,812.68

Finding the Fourth Proportional to 38,580.04, 53,243.94 and 21,812.68

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Solution

The fourth proportional to 38,580.04, 53,243.94 and 21,812.68 is: 30,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.04 : 53,243.94 = 21,812.68 : x
  2. Step 2: Convert to fraction form
    38,580.04/53,243.94 = 21,812.68/x
  3. Step 3: Cross multiply
    38,580.04x = 53,243.94 × 21,812.68
  4. Step 4: Simplify right side
    38,580.04x = 1,161,393,025.16
  5. Step 5: Solve for x
    x = 1,161,393,025.16/38,580.04
  6. Step 6: Final answer
    x = 30,103.47

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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.