Home / 30,356.28-45,539.90-13,724.15

Finding the Fourth Proportional to 30,356.28, 45,539.90 and 13,724.15

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Solution

The fourth proportional to 30,356.28, 45,539.90 and 13,724.15 is: 20,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.28 : 45,539.90 = 13,724.15 : x
  2. Step 2: Convert to fraction form
    30,356.28/45,539.90 = 13,724.15/x
  3. Step 3: Cross multiply
    30,356.28x = 45,539.90 × 13,724.15
  4. Step 4: Simplify right side
    30,356.28x = 624,996,225.20
  5. Step 5: Solve for x
    x = 624,996,225.20/30,356.28
  6. Step 6: Final answer
    x = 20,588.70

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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.