Home / 38,836.50-58,129.45-20,090.72

Finding the Fourth Proportional to 38,836.50, 58,129.45 and 20,090.72

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Solution

The fourth proportional to 38,836.50, 58,129.45 and 20,090.72 is: 30,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,836.50 : 58,129.45 = 20,090.72 : x
  2. Step 2: Convert to fraction form
    38,836.50/58,129.45 = 20,090.72/x
  3. Step 3: Cross multiply
    38,836.50x = 58,129.45 × 20,090.72
  4. Step 4: Simplify right side
    38,836.50x = 1,167,862,403.25
  5. Step 5: Solve for x
    x = 1,167,862,403.25/38,836.50
  6. Step 6: Final answer
    x = 30,071.26

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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.