Home / 30,195.18-45,297.63-10,485.45

Finding the Fourth Proportional to 30,195.18, 45,297.63 and 10,485.45

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Solution

The fourth proportional to 30,195.18, 45,297.63 and 10,485.45 is: 15,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.18 : 45,297.63 = 10,485.45 : x
  2. Step 2: Convert to fraction form
    30,195.18/45,297.63 = 10,485.45/x
  3. Step 3: Cross multiply
    30,195.18x = 45,297.63 × 10,485.45
  4. Step 4: Simplify right side
    30,195.18x = 474,966,034.48
  5. Step 5: Solve for x
    x = 474,966,034.48/30,195.18
  6. Step 6: Final answer
    x = 15,729.86

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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.