Home / 13,345.26-20,017.89-3,485.52

Finding the Fourth Proportional to 13,345.26, 20,017.89 and 3,485.52

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Solution

The fourth proportional to 13,345.26, 20,017.89 and 3,485.52 is: 5,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.26 : 20,017.89 = 3,485.52 : x
  2. Step 2: Convert to fraction form
    13,345.26/20,017.89 = 3,485.52/x
  3. Step 3: Cross multiply
    13,345.26x = 20,017.89 × 3,485.52
  4. Step 4: Simplify right side
    13,345.26x = 69,772,755.95
  5. Step 5: Solve for x
    x = 69,772,755.95/13,345.26
  6. Step 6: Final answer
    x = 5,228.28

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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.