Home / 13,435.83-20,153.71-3,575.11

Finding the Fourth Proportional to 13,435.83, 20,153.71 and 3,575.11

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Solution

The fourth proportional to 13,435.83, 20,153.71 and 3,575.11 is: 5,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.83 : 20,153.71 = 3,575.11 : x
  2. Step 2: Convert to fraction form
    13,435.83/20,153.71 = 3,575.11/x
  3. Step 3: Cross multiply
    13,435.83x = 20,153.71 × 3,575.11
  4. Step 4: Simplify right side
    13,435.83x = 72,051,730.16
  5. Step 5: Solve for x
    x = 72,051,730.16/13,435.83
  6. Step 6: Final answer
    x = 5,362.66

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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.