Home / 13,823.32-20,734.95-3,435.07

Finding the Fourth Proportional to 13,823.32, 20,734.95 and 3,435.07

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Solution

The fourth proportional to 13,823.32, 20,734.95 and 3,435.07 is: 5,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.32 : 20,734.95 = 3,435.07 : x
  2. Step 2: Convert to fraction form
    13,823.32/20,734.95 = 3,435.07/x
  3. Step 3: Cross multiply
    13,823.32x = 20,734.95 × 3,435.07
  4. Step 4: Simplify right side
    13,823.32x = 71,226,004.70
  5. Step 5: Solve for x
    x = 71,226,004.70/13,823.32
  6. Step 6: Final answer
    x = 5,152.60

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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.