Home / 25,328.45-38,003.61-13,639.34

Finding the Fourth Proportional to 25,328.45, 38,003.61 and 13,639.34

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Solution

The fourth proportional to 25,328.45, 38,003.61 and 13,639.34 is: 20,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,328.45 : 38,003.61 = 13,639.34 : x
  2. Step 2: Convert to fraction form
    25,328.45/38,003.61 = 13,639.34/x
  3. Step 3: Cross multiply
    25,328.45x = 38,003.61 × 13,639.34
  4. Step 4: Simplify right side
    25,328.45x = 518,344,304.17
  5. Step 5: Solve for x
    x = 518,344,304.17/25,328.45
  6. Step 6: Final answer
    x = 20,464.90

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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.