Home / 19,997.21-29,985.56-11,693.45

Finding the Fourth Proportional to 19,997.21, 29,985.56 and 11,693.45

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Solution

The fourth proportional to 19,997.21, 29,985.56 and 11,693.45 is: 17,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.21 : 29,985.56 = 11,693.45 : x
  2. Step 2: Convert to fraction form
    19,997.21/29,985.56 = 11,693.45/x
  3. Step 3: Cross multiply
    19,997.21x = 29,985.56 × 11,693.45
  4. Step 4: Simplify right side
    19,997.21x = 350,634,538.26
  5. Step 5: Solve for x
    x = 350,634,538.26/19,997.21
  6. Step 6: Final answer
    x = 17,534.17

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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.