Home / 30,319.14-45,476.82-13,672.38

Finding the Fourth Proportional to 30,319.14, 45,476.82 and 13,672.38

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Solution

The fourth proportional to 30,319.14, 45,476.82 and 13,672.38 is: 20,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.14 : 45,476.82 = 13,672.38 : x
  2. Step 2: Convert to fraction form
    30,319.14/45,476.82 = 13,672.38/x
  3. Step 3: Cross multiply
    30,319.14x = 45,476.82 × 13,672.38
  4. Step 4: Simplify right side
    30,319.14x = 621,776,364.23
  5. Step 5: Solve for x
    x = 621,776,364.23/30,319.14
  6. Step 6: Final answer
    x = 20,507.72

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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.