Home / 30,428.25-45,642.39-9,651.75

Finding the Fourth Proportional to 30,428.25, 45,642.39 and 9,651.75

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Solution

The fourth proportional to 30,428.25, 45,642.39 and 9,651.75 is: 14,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.25 : 45,642.39 = 9,651.75 : x
  2. Step 2: Convert to fraction form
    30,428.25/45,642.39 = 9,651.75/x
  3. Step 3: Cross multiply
    30,428.25x = 45,642.39 × 9,651.75
  4. Step 4: Simplify right side
    30,428.25x = 440,528,937.68
  5. Step 5: Solve for x
    x = 440,528,937.68/30,428.25
  6. Step 6: Final answer
    x = 14,477.63

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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.