Home / 13,743.90-20,643.47-13,356.32

Finding the Fourth Proportional to 13,743.90, 20,643.47 and 13,356.32

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Solution

The fourth proportional to 13,743.90, 20,643.47 and 13,356.32 is: 20,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.90 : 20,643.47 = 13,356.32 : x
  2. Step 2: Convert to fraction form
    13,743.90/20,643.47 = 13,356.32/x
  3. Step 3: Cross multiply
    13,743.90x = 20,643.47 × 13,356.32
  4. Step 4: Simplify right side
    13,743.90x = 275,720,621.23
  5. Step 5: Solve for x
    x = 275,720,621.23/13,743.90
  6. Step 6: Final answer
    x = 20,061.31

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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.