Home / 30,470.05-45,699.47-13,826.08

Finding the Fourth Proportional to 30,470.05, 45,699.47 and 13,826.08

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Solution

The fourth proportional to 30,470.05, 45,699.47 and 13,826.08 is: 20,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.05 : 45,699.47 = 13,826.08 : x
  2. Step 2: Convert to fraction form
    30,470.05/45,699.47 = 13,826.08/x
  3. Step 3: Cross multiply
    30,470.05x = 45,699.47 × 13,826.08
  4. Step 4: Simplify right side
    30,470.05x = 631,844,230.55
  5. Step 5: Solve for x
    x = 631,844,230.55/30,470.05
  6. Step 6: Final answer
    x = 20,736.57

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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.