Home / 30,119.87-45,186.96-10,398.59

Finding the Fourth Proportional to 30,119.87, 45,186.96 and 10,398.59

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Solution

The fourth proportional to 30,119.87, 45,186.96 and 10,398.59 is: 15,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.87 : 45,186.96 = 10,398.59 : x
  2. Step 2: Convert to fraction form
    30,119.87/45,186.96 = 10,398.59/x
  3. Step 3: Cross multiply
    30,119.87x = 45,186.96 × 10,398.59
  4. Step 4: Simplify right side
    30,119.87x = 469,880,670.39
  5. Step 5: Solve for x
    x = 469,880,670.39/30,119.87
  6. Step 6: Final answer
    x = 15,600.36

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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.