Home / 19,643.36-27,117.88-15,157.04

Finding the Fourth Proportional to 19,643.36, 27,117.88 and 15,157.04

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Solution

The fourth proportional to 19,643.36, 27,117.88 and 15,157.04 is: 20,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.36 : 27,117.88 = 15,157.04 : x
  2. Step 2: Convert to fraction form
    19,643.36/27,117.88 = 15,157.04/x
  3. Step 3: Cross multiply
    19,643.36x = 27,117.88 × 15,157.04
  4. Step 4: Simplify right side
    19,643.36x = 411,026,791.88
  5. Step 5: Solve for x
    x = 411,026,791.88/19,643.36
  6. Step 6: Final answer
    x = 20,924.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.