Home / 28,749.61-39,692.69-19,690.16

Finding the Fourth Proportional to 28,749.61, 39,692.69 and 19,690.16

Calculator

Solution

The fourth proportional to 28,749.61, 39,692.69 and 19,690.16 is: 27,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.61 : 39,692.69 = 19,690.16 : x
  2. Step 2: Convert to fraction form
    28,749.61/39,692.69 = 19,690.16/x
  3. Step 3: Cross multiply
    28,749.61x = 39,692.69 × 19,690.16
  4. Step 4: Simplify right side
    28,749.61x = 781,555,318.48
  5. Step 5: Solve for x
    x = 781,555,318.48/28,749.61
  6. Step 6: Final answer
    x = 27,184.91

Related Problems

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.