Home / 28,526.85-39,364.03-15,778.01

Finding the Fourth Proportional to 28,526.85, 39,364.03 and 15,778.01

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Solution

The fourth proportional to 28,526.85, 39,364.03 and 15,778.01 is: 21,771.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.85 : 39,364.03 = 15,778.01 : x
  2. Step 2: Convert to fraction form
    28,526.85/39,364.03 = 15,778.01/x
  3. Step 3: Cross multiply
    28,526.85x = 39,364.03 × 15,778.01
  4. Step 4: Simplify right side
    28,526.85x = 621,085,783.27
  5. Step 5: Solve for x
    x = 621,085,783.27/28,526.85
  6. Step 6: Final answer
    x = 21,771.97

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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.