Home / 38,316.85-57,478.01-12,021.21

Finding the Fourth Proportional to 38,316.85, 57,478.01 and 12,021.21

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Solution

The fourth proportional to 38,316.85, 57,478.01 and 12,021.21 is: 18,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,316.85 : 57,478.01 = 12,021.21 : x
  2. Step 2: Convert to fraction form
    38,316.85/57,478.01 = 12,021.21/x
  3. Step 3: Cross multiply
    38,316.85x = 57,478.01 × 12,021.21
  4. Step 4: Simplify right side
    38,316.85x = 690,955,168.49
  5. Step 5: Solve for x
    x = 690,955,168.49/38,316.85
  6. Step 6: Final answer
    x = 18,032.67

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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.