Home / 25,328.96-38,004.37-13,639.85

Finding the Fourth Proportional to 25,328.96, 38,004.37 and 13,639.85

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Solution

The fourth proportional to 25,328.96, 38,004.37 and 13,639.85 is: 20,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,328.96 : 38,004.37 = 13,639.85 : x
  2. Step 2: Convert to fraction form
    25,328.96/38,004.37 = 13,639.85/x
  3. Step 3: Cross multiply
    25,328.96x = 38,004.37 × 13,639.85
  4. Step 4: Simplify right side
    25,328.96x = 518,373,647.92
  5. Step 5: Solve for x
    x = 518,373,647.92/25,328.96
  6. Step 6: Final answer
    x = 20,465.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.