Home / 28,520.28-39,372.93-17,768.45

Finding the Fourth Proportional to 28,520.28, 39,372.93 and 17,768.45

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Solution

The fourth proportional to 28,520.28, 39,372.93 and 17,768.45 is: 24,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.28 : 39,372.93 = 17,768.45 : x
  2. Step 2: Convert to fraction form
    28,520.28/39,372.93 = 17,768.45/x
  3. Step 3: Cross multiply
    28,520.28x = 39,372.93 × 17,768.45
  4. Step 4: Simplify right side
    28,520.28x = 699,595,741.19
  5. Step 5: Solve for x
    x = 699,595,741.19/28,520.28
  6. Step 6: Final answer
    x = 24,529.76

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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.