Home / 38,456.21-52,990.81-28,368.68

Finding the Fourth Proportional to 38,456.21, 52,990.81 and 28,368.68

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Solution

The fourth proportional to 38,456.21, 52,990.81 and 28,368.68 is: 39,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.21 : 52,990.81 = 28,368.68 : x
  2. Step 2: Convert to fraction form
    38,456.21/52,990.81 = 28,368.68/x
  3. Step 3: Cross multiply
    38,456.21x = 52,990.81 × 28,368.68
  4. Step 4: Simplify right side
    38,456.21x = 1,503,278,995.96
  5. Step 5: Solve for x
    x = 1,503,278,995.96/38,456.21
  6. Step 6: Final answer
    x = 39,090.67

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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.