Home / 28,074.85-38,741.63-15,325.50

Finding the Fourth Proportional to 28,074.85, 38,741.63 and 15,325.50

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Solution

The fourth proportional to 28,074.85, 38,741.63 and 15,325.50 is: 21,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.85 : 38,741.63 = 15,325.50 : x
  2. Step 2: Convert to fraction form
    28,074.85/38,741.63 = 15,325.50/x
  3. Step 3: Cross multiply
    28,074.85x = 38,741.63 × 15,325.50
  4. Step 4: Simplify right side
    28,074.85x = 593,734,850.57
  5. Step 5: Solve for x
    x = 593,734,850.57/28,074.85
  6. Step 6: Final answer
    x = 21,148.28

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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.