Home / 28,369.96-39,150.23-15,622.89

Finding the Fourth Proportional to 28,369.96, 39,150.23 and 15,622.89

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Solution

The fourth proportional to 28,369.96, 39,150.23 and 15,622.89 is: 21,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.96 : 39,150.23 = 15,622.89 : x
  2. Step 2: Convert to fraction form
    28,369.96/39,150.23 = 15,622.89/x
  3. Step 3: Cross multiply
    28,369.96x = 39,150.23 × 15,622.89
  4. Step 4: Simplify right side
    28,369.96x = 611,639,462.90
  5. Step 5: Solve for x
    x = 611,639,462.90/28,369.96
  6. Step 6: Final answer
    x = 21,559.41

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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.