Home / 30,271.56-45,409.04-9,212.28

Finding the Fourth Proportional to 30,271.56, 45,409.04 and 9,212.28

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Solution

The fourth proportional to 30,271.56, 45,409.04 and 9,212.28 is: 13,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271.56 : 45,409.04 = 9,212.28 : x
  2. Step 2: Convert to fraction form
    30,271.56/45,409.04 = 9,212.28/x
  3. Step 3: Cross multiply
    30,271.56x = 45,409.04 × 9,212.28
  4. Step 4: Simplify right side
    30,271.56x = 418,320,984.33
  5. Step 5: Solve for x
    x = 418,320,984.33/30,271.56
  6. Step 6: Final answer
    x = 13,818.95

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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.