Home / 30,359.28-45,539.32-10,638.38

Finding the Fourth Proportional to 30,359.28, 45,539.32 and 10,638.38

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Solution

The fourth proportional to 30,359.28, 45,539.32 and 10,638.38 is: 15,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.28 : 45,539.32 = 10,638.38 : x
  2. Step 2: Convert to fraction form
    30,359.28/45,539.32 = 10,638.38/x
  3. Step 3: Cross multiply
    30,359.28x = 45,539.32 × 10,638.38
  4. Step 4: Simplify right side
    30,359.28x = 484,464,591.10
  5. Step 5: Solve for x
    x = 484,464,591.10/30,359.28
  6. Step 6: Final answer
    x = 15,957.71

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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.