Home / 30,109.31-45,173.07-10,116.48

Finding the Fourth Proportional to 30,109.31, 45,173.07 and 10,116.48

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Solution

The fourth proportional to 30,109.31, 45,173.07 and 10,116.48 is: 15,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.31 : 45,173.07 = 10,116.48 : x
  2. Step 2: Convert to fraction form
    30,109.31/45,173.07 = 10,116.48/x
  3. Step 3: Cross multiply
    30,109.31x = 45,173.07 × 10,116.48
  4. Step 4: Simplify right side
    30,109.31x = 456,992,459.19
  5. Step 5: Solve for x
    x = 456,992,459.19/30,109.31
  6. Step 6: Final answer
    x = 15,177.78

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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.