Home / 30,326.64-45,414-19,199.76

Finding the Fourth Proportional to 30,326.64, 45,414 and 19,199.76

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Solution

The fourth proportional to 30,326.64, 45,414 and 19,199.76 is: 28,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,326.64 : 45,414 = 19,199.76 : x
  2. Step 2: Convert to fraction form
    30,326.64/45,414 = 19,199.76/x
  3. Step 3: Cross multiply
    30,326.64x = 45,414 × 19,199.76
  4. Step 4: Simplify right side
    30,326.64x = 871,937,900.64
  5. Step 5: Solve for x
    x = 871,937,900.64/30,326.64
  6. Step 6: Final answer
    x = 28,751.55

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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.