Home / 38,146.55-52,640.40-21,151.48

Finding the Fourth Proportional to 38,146.55, 52,640.40 and 21,151.48

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Solution

The fourth proportional to 38,146.55, 52,640.40 and 21,151.48 is: 29,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.55 : 52,640.40 = 21,151.48 : x
  2. Step 2: Convert to fraction form
    38,146.55/52,640.40 = 21,151.48/x
  3. Step 3: Cross multiply
    38,146.55x = 52,640.40 × 21,151.48
  4. Step 4: Simplify right side
    38,146.55x = 1,113,422,295.23
  5. Step 5: Solve for x
    x = 1,113,422,295.23/38,146.55
  6. Step 6: Final answer
    x = 29,188.02

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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.