Home / 30,313.36-45,476.24-12,783.20

Finding the Fourth Proportional to 30,313.36, 45,476.24 and 12,783.20

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Solution

The fourth proportional to 30,313.36, 45,476.24 and 12,783.20 is: 19,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.36 : 45,476.24 = 12,783.20 : x
  2. Step 2: Convert to fraction form
    30,313.36/45,476.24 = 12,783.20/x
  3. Step 3: Cross multiply
    30,313.36x = 45,476.24 × 12,783.20
  4. Step 4: Simplify right side
    30,313.36x = 581,331,871.17
  5. Step 5: Solve for x
    x = 581,331,871.17/30,313.36
  6. Step 6: Final answer
    x = 19,177.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.