Home / 25,745.04-35,503.92-20,457.36

Finding the Fourth Proportional to 25,745.04, 35,503.92 and 20,457.36

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Solution

The fourth proportional to 25,745.04, 35,503.92 and 20,457.36 is: 28,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,745.04 : 35,503.92 = 20,457.36 : x
  2. Step 2: Convert to fraction form
    25,745.04/35,503.92 = 20,457.36/x
  3. Step 3: Cross multiply
    25,745.04x = 35,503.92 × 20,457.36
  4. Step 4: Simplify right side
    25,745.04x = 726,316,472.85
  5. Step 5: Solve for x
    x = 726,316,472.85/25,745.04
  6. Step 6: Final answer
    x = 28,211.90

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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.