Home / 30,574.08-45,861.24-8,387.70

Finding the Fourth Proportional to 30,574.08, 45,861.24 and 8,387.70

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Solution

The fourth proportional to 30,574.08, 45,861.24 and 8,387.70 is: 12,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.08 : 45,861.24 = 8,387.70 : x
  2. Step 2: Convert to fraction form
    30,574.08/45,861.24 = 8,387.70/x
  3. Step 3: Cross multiply
    30,574.08x = 45,861.24 × 8,387.70
  4. Step 4: Simplify right side
    30,574.08x = 384,670,322.75
  5. Step 5: Solve for x
    x = 384,670,322.75/30,574.08
  6. Step 6: Final answer
    x = 12,581.58

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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.