Home / 30,133.15-45,206.03-9,074.72

Finding the Fourth Proportional to 30,133.15, 45,206.03 and 9,074.72

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Solution

The fourth proportional to 30,133.15, 45,206.03 and 9,074.72 is: 13,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.15 : 45,206.03 = 9,074.72 : x
  2. Step 2: Convert to fraction form
    30,133.15/45,206.03 = 9,074.72/x
  3. Step 3: Cross multiply
    30,133.15x = 45,206.03 × 9,074.72
  4. Step 4: Simplify right side
    30,133.15x = 410,232,064.56
  5. Step 5: Solve for x
    x = 410,232,064.56/30,133.15
  6. Step 6: Final answer
    x = 13,613.98

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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.