Home / 38,986.22-53,797.88-21,985.01

Finding the Fourth Proportional to 38,986.22, 53,797.88 and 21,985.01

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Solution

The fourth proportional to 38,986.22, 53,797.88 and 21,985.01 is: 30,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.22 : 53,797.88 = 21,985.01 : x
  2. Step 2: Convert to fraction form
    38,986.22/53,797.88 = 21,985.01/x
  3. Step 3: Cross multiply
    38,986.22x = 53,797.88 × 21,985.01
  4. Step 4: Simplify right side
    38,986.22x = 1,182,746,550.86
  5. Step 5: Solve for x
    x = 1,182,746,550.86/38,986.22
  6. Step 6: Final answer
    x = 30,337.56

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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.