Home / 30,221.46-45,330.79-10,501.56

Finding the Fourth Proportional to 30,221.46, 45,330.79 and 10,501.56

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Solution

The fourth proportional to 30,221.46, 45,330.79 and 10,501.56 is: 15,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.46 : 45,330.79 = 10,501.56 : x
  2. Step 2: Convert to fraction form
    30,221.46/45,330.79 = 10,501.56/x
  3. Step 3: Cross multiply
    30,221.46x = 45,330.79 × 10,501.56
  4. Step 4: Simplify right side
    30,221.46x = 476,044,011.03
  5. Step 5: Solve for x
    x = 476,044,011.03/30,221.46
  6. Step 6: Final answer
    x = 15,751.85

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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.