Home / 30,358.60-45,536.12-11,637.88

Finding the Fourth Proportional to 30,358.60, 45,536.12 and 11,637.88

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Solution

The fourth proportional to 30,358.60, 45,536.12 and 11,637.88 is: 17,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.60 : 45,536.12 = 11,637.88 : x
  2. Step 2: Convert to fraction form
    30,358.60/45,536.12 = 11,637.88/x
  3. Step 3: Cross multiply
    30,358.60x = 45,536.12 × 11,637.88
  4. Step 4: Simplify right side
    30,358.60x = 529,943,837.30
  5. Step 5: Solve for x
    x = 529,943,837.30/30,358.60
  6. Step 6: Final answer
    x = 17,456.14

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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.