Home / 28,306.45-39,062.46-15,559.36

Finding the Fourth Proportional to 28,306.45, 39,062.46 and 15,559.36

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Solution

The fourth proportional to 28,306.45, 39,062.46 and 15,559.36 is: 21,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.45 : 39,062.46 = 15,559.36 : x
  2. Step 2: Convert to fraction form
    28,306.45/39,062.46 = 15,559.36/x
  3. Step 3: Cross multiply
    28,306.45x = 39,062.46 × 15,559.36
  4. Step 4: Simplify right side
    28,306.45x = 607,786,682.31
  5. Step 5: Solve for x
    x = 607,786,682.31/28,306.45
  6. Step 6: Final answer
    x = 21,471.67

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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.