Home / 38,664.32-53,356.76-21,897.32

Finding the Fourth Proportional to 38,664.32, 53,356.76 and 21,897.32

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Solution

The fourth proportional to 38,664.32, 53,356.76 and 21,897.32 is: 30,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.32 : 53,356.76 = 21,897.32 : x
  2. Step 2: Convert to fraction form
    38,664.32/53,356.76 = 21,897.32/x
  3. Step 3: Cross multiply
    38,664.32x = 53,356.76 × 21,897.32
  4. Step 4: Simplify right side
    38,664.32x = 1,168,370,047.88
  5. Step 5: Solve for x
    x = 1,168,370,047.88/38,664.32
  6. Step 6: Final answer
    x = 30,218.30

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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.