Home / 30,119.88-45,182.34-10,398.60

Finding the Fourth Proportional to 30,119.88, 45,182.34 and 10,398.60

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Solution

The fourth proportional to 30,119.88, 45,182.34 and 10,398.60 is: 15,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.88 : 45,182.34 = 10,398.60 : x
  2. Step 2: Convert to fraction form
    30,119.88/45,182.34 = 10,398.60/x
  3. Step 3: Cross multiply
    30,119.88x = 45,182.34 × 10,398.60
  4. Step 4: Simplify right side
    30,119.88x = 469,833,080.72
  5. Step 5: Solve for x
    x = 469,833,080.72/30,119.88
  6. Step 6: Final answer
    x = 15,598.77

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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.