Home / 38,809.18-53,555.94-21,582.60

Finding the Fourth Proportional to 38,809.18, 53,555.94 and 21,582.60

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Solution

The fourth proportional to 38,809.18, 53,555.94 and 21,582.60 is: 29,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809.18 : 53,555.94 = 21,582.60 : x
  2. Step 2: Convert to fraction form
    38,809.18/53,555.94 = 21,582.60/x
  3. Step 3: Cross multiply
    38,809.18x = 53,555.94 × 21,582.60
  4. Step 4: Simplify right side
    38,809.18x = 1,155,876,430.64
  5. Step 5: Solve for x
    x = 1,155,876,430.64/38,809.18
  6. Step 6: Final answer
    x = 29,783.58

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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.