Home / 30,100.35-45,178.28-15,319.88

Finding the Fourth Proportional to 30,100.35, 45,178.28 and 15,319.88

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Solution

The fourth proportional to 30,100.35, 45,178.28 and 15,319.88 is: 22,993.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.35 : 45,178.28 = 15,319.88 : x
  2. Step 2: Convert to fraction form
    30,100.35/45,178.28 = 15,319.88/x
  3. Step 3: Cross multiply
    30,100.35x = 45,178.28 × 15,319.88
  4. Step 4: Simplify right side
    30,100.35x = 692,125,525.72
  5. Step 5: Solve for x
    x = 692,125,525.72/30,100.35
  6. Step 6: Final answer
    x = 22,993.94

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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.