Home / 30,027.96-45,029.10-10,308.51

Finding the Fourth Proportional to 30,027.96, 45,029.10 and 10,308.51

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Solution

The fourth proportional to 30,027.96, 45,029.10 and 10,308.51 is: 15,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,027.96 : 45,029.10 = 10,308.51 : x
  2. Step 2: Convert to fraction form
    30,027.96/45,029.10 = 10,308.51/x
  3. Step 3: Cross multiply
    30,027.96x = 45,029.10 × 10,308.51
  4. Step 4: Simplify right side
    30,027.96x = 464,182,927.64
  5. Step 5: Solve for x
    x = 464,182,927.64/30,027.96
  6. Step 6: Final answer
    x = 15,458.36

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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.