Home / 38,421.80-57,632.60-10,719.80

Finding the Fourth Proportional to 38,421.80, 57,632.60 and 10,719.80

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Solution

The fourth proportional to 38,421.80, 57,632.60 and 10,719.80 is: 16,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.80 : 57,632.60 = 10,719.80 : x
  2. Step 2: Convert to fraction form
    38,421.80/57,632.60 = 10,719.80/x
  3. Step 3: Cross multiply
    38,421.80x = 57,632.60 × 10,719.80
  4. Step 4: Simplify right side
    38,421.80x = 617,809,945.48
  5. Step 5: Solve for x
    x = 617,809,945.48/38,421.80
  6. Step 6: Final answer
    x = 16,079.67

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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.