Home / 30,362.60-45,542.45-10,639.65

Finding the Fourth Proportional to 30,362.60, 45,542.45 and 10,639.65

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Solution

The fourth proportional to 30,362.60, 45,542.45 and 10,639.65 is: 15,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.60 : 45,542.45 = 10,639.65 : x
  2. Step 2: Convert to fraction form
    30,362.60/45,542.45 = 10,639.65/x
  3. Step 3: Cross multiply
    30,362.60x = 45,542.45 × 10,639.65
  4. Step 4: Simplify right side
    30,362.60x = 484,555,925.53
  5. Step 5: Solve for x
    x = 484,555,925.53/30,362.60
  6. Step 6: Final answer
    x = 15,958.98

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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.