Home / 51,037.21-70,433.69-28,378.53

Finding the Fourth Proportional to 51,037.21, 70,433.69 and 28,378.53

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Solution

The fourth proportional to 51,037.21, 70,433.69 and 28,378.53 is: 39,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.21 : 70,433.69 = 28,378.53 : x
  2. Step 2: Convert to fraction form
    51,037.21/70,433.69 = 28,378.53/x
  3. Step 3: Cross multiply
    51,037.21x = 70,433.69 × 28,378.53
  4. Step 4: Simplify right side
    51,037.21x = 1,998,804,338.29
  5. Step 5: Solve for x
    x = 1,998,804,338.29/51,037.21
  6. Step 6: Final answer
    x = 39,163.67

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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.