Home / 38,771.01-53,503.81-21,775.25

Finding the Fourth Proportional to 38,771.01, 53,503.81 and 21,775.25

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Solution

The fourth proportional to 38,771.01, 53,503.81 and 21,775.25 is: 30,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,771.01 : 53,503.81 = 21,775.25 : x
  2. Step 2: Convert to fraction form
    38,771.01/53,503.81 = 21,775.25/x
  3. Step 3: Cross multiply
    38,771.01x = 53,503.81 × 21,775.25
  4. Step 4: Simplify right side
    38,771.01x = 1,165,058,918.02
  5. Step 5: Solve for x
    x = 1,165,058,918.02/38,771.01
  6. Step 6: Final answer
    x = 30,049.74

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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.