Home / 30,319.98-45,476.79-8,135.63

Finding the Fourth Proportional to 30,319.98, 45,476.79 and 8,135.63

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Solution

The fourth proportional to 30,319.98, 45,476.79 and 8,135.63 is: 12,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.98 : 45,476.79 = 8,135.63 : x
  2. Step 2: Convert to fraction form
    30,319.98/45,476.79 = 8,135.63/x
  3. Step 3: Cross multiply
    30,319.98x = 45,476.79 × 8,135.63
  4. Step 4: Simplify right side
    30,319.98x = 369,982,337.03
  5. Step 5: Solve for x
    x = 369,982,337.03/30,319.98
  6. Step 6: Final answer
    x = 12,202.59

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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.