Home / 38,221.47-57,266.19-20,703.60

Finding the Fourth Proportional to 38,221.47, 57,266.19 and 20,703.60

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Solution

The fourth proportional to 38,221.47, 57,266.19 and 20,703.60 is: 31,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,221.47 : 57,266.19 = 20,703.60 : x
  2. Step 2: Convert to fraction form
    38,221.47/57,266.19 = 20,703.60/x
  3. Step 3: Cross multiply
    38,221.47x = 57,266.19 × 20,703.60
  4. Step 4: Simplify right side
    38,221.47x = 1,185,616,291.28
  5. Step 5: Solve for x
    x = 1,185,616,291.28/38,221.47
  6. Step 6: Final answer
    x = 31,019.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.