Home / 30,379.32-45,572.76-12,844.71

Finding the Fourth Proportional to 30,379.32, 45,572.76 and 12,844.71

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Solution

The fourth proportional to 30,379.32, 45,572.76 and 12,844.71 is: 19,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.32 : 45,572.76 = 12,844.71 : x
  2. Step 2: Convert to fraction form
    30,379.32/45,572.76 = 12,844.71/x
  3. Step 3: Cross multiply
    30,379.32x = 45,572.76 × 12,844.71
  4. Step 4: Simplify right side
    30,379.32x = 585,368,886.10
  5. Step 5: Solve for x
    x = 585,368,886.10/30,379.32
  6. Step 6: Final answer
    x = 19,268.66

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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.