Home / 30,428.75-45,646.97-10,442.14

Finding the Fourth Proportional to 30,428.75, 45,646.97 and 10,442.14

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Solution

The fourth proportional to 30,428.75, 45,646.97 and 10,442.14 is: 15,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.75 : 45,646.97 = 10,442.14 : x
  2. Step 2: Convert to fraction form
    30,428.75/45,646.97 = 10,442.14/x
  3. Step 3: Cross multiply
    30,428.75x = 45,646.97 × 10,442.14
  4. Step 4: Simplify right side
    30,428.75x = 476,651,963.30
  5. Step 5: Solve for x
    x = 476,651,963.30/30,428.75
  6. Step 6: Final answer
    x = 15,664.53

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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.