Home / 38,814.38-53,563.36-21,821.45

Finding the Fourth Proportional to 38,814.38, 53,563.36 and 21,821.45

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Solution

The fourth proportional to 38,814.38, 53,563.36 and 21,821.45 is: 30,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,814.38 : 53,563.36 = 21,821.45 : x
  2. Step 2: Convert to fraction form
    38,814.38/53,563.36 = 21,821.45/x
  3. Step 3: Cross multiply
    38,814.38x = 53,563.36 × 21,821.45
  4. Step 4: Simplify right side
    38,814.38x = 1,168,830,343.26
  5. Step 5: Solve for x
    x = 1,168,830,343.26/38,814.38
  6. Step 6: Final answer
    x = 30,113.34

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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.