Home / 20,357.40-30,536.10-17,076.90

Finding the Fourth Proportional to 20,357.40, 30,536.10 and 17,076.90

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Solution

The fourth proportional to 20,357.40, 30,536.10 and 17,076.90 is: 25,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.40 : 30,536.10 = 17,076.90 : x
  2. Step 2: Convert to fraction form
    20,357.40/30,536.10 = 17,076.90/x
  3. Step 3: Cross multiply
    20,357.40x = 30,536.10 × 17,076.90
  4. Step 4: Simplify right side
    20,357.40x = 521,461,926.09
  5. Step 5: Solve for x
    x = 521,461,926.09/20,357.40
  6. Step 6: Final answer
    x = 25,615.35

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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.