Home / 30,277.56-45,455.22-25,689.72

Finding the Fourth Proportional to 30,277.56, 45,455.22 and 25,689.72

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Solution

The fourth proportional to 30,277.56, 45,455.22 and 25,689.72 is: 38,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.56 : 45,455.22 = 25,689.72 : x
  2. Step 2: Convert to fraction form
    30,277.56/45,455.22 = 25,689.72/x
  3. Step 3: Cross multiply
    30,277.56x = 45,455.22 × 25,689.72
  4. Step 4: Simplify right side
    30,277.56x = 1,167,731,874.34
  5. Step 5: Solve for x
    x = 1,167,731,874.34/30,277.56
  6. Step 6: Final answer
    x = 38,567.57

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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.