Home / 30,516.94-45,779.66-13,881.16

Finding the Fourth Proportional to 30,516.94, 45,779.66 and 13,881.16

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Solution

The fourth proportional to 30,516.94, 45,779.66 and 13,881.16 is: 20,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.94 : 45,779.66 = 13,881.16 : x
  2. Step 2: Convert to fraction form
    30,516.94/45,779.66 = 13,881.16/x
  3. Step 3: Cross multiply
    30,516.94x = 45,779.66 × 13,881.16
  4. Step 4: Simplify right side
    30,516.94x = 635,474,785.21
  5. Step 5: Solve for x
    x = 635,474,785.21/30,516.94
  6. Step 6: Final answer
    x = 20,823.67

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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.