Home / 28,523.18-39,360.86-15,775.54

Finding the Fourth Proportional to 28,523.18, 39,360.86 and 15,775.54

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Solution

The fourth proportional to 28,523.18, 39,360.86 and 15,775.54 is: 21,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,523.18 : 39,360.86 = 15,775.54 : x
  2. Step 2: Convert to fraction form
    28,523.18/39,360.86 = 15,775.54/x
  3. Step 3: Cross multiply
    28,523.18x = 39,360.86 × 15,775.54
  4. Step 4: Simplify right side
    28,523.18x = 620,938,821.36
  5. Step 5: Solve for x
    x = 620,938,821.36/28,523.18
  6. Step 6: Final answer
    x = 21,769.62

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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.