Home / 20,895.46-31,353.95-13,880.32

Finding the Fourth Proportional to 20,895.46, 31,353.95 and 13,880.32

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Solution

The fourth proportional to 20,895.46, 31,353.95 and 13,880.32 is: 20,827.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.46 : 31,353.95 = 13,880.32 : x
  2. Step 2: Convert to fraction form
    20,895.46/31,353.95 = 13,880.32/x
  3. Step 3: Cross multiply
    20,895.46x = 31,353.95 × 13,880.32
  4. Step 4: Simplify right side
    20,895.46x = 435,202,815.58
  5. Step 5: Solve for x
    x = 435,202,815.58/20,895.46
  6. Step 6: Final answer
    x = 20,827.63

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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.