Home / 30,279.05-45,425.48-9,222.07

Finding the Fourth Proportional to 30,279.05, 45,425.48 and 9,222.07

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Solution

The fourth proportional to 30,279.05, 45,425.48 and 9,222.07 is: 13,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.05 : 45,425.48 = 9,222.07 : x
  2. Step 2: Convert to fraction form
    30,279.05/45,425.48 = 9,222.07/x
  3. Step 3: Cross multiply
    30,279.05x = 45,425.48 × 9,222.07
  4. Step 4: Simplify right side
    30,279.05x = 418,916,881.84
  5. Step 5: Solve for x
    x = 418,916,881.84/30,279.05
  6. Step 6: Final answer
    x = 13,835.21

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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.