Home / 27,130.55-40,688.33-7,409.88

Finding the Fourth Proportional to 27,130.55, 40,688.33 and 7,409.88

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Solution

The fourth proportional to 27,130.55, 40,688.33 and 7,409.88 is: 11,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,130.55 : 40,688.33 = 7,409.88 : x
  2. Step 2: Convert to fraction form
    27,130.55/40,688.33 = 7,409.88/x
  3. Step 3: Cross multiply
    27,130.55x = 40,688.33 × 7,409.88
  4. Step 4: Simplify right side
    27,130.55x = 301,495,605.65
  5. Step 5: Solve for x
    x = 301,495,605.65/27,130.55
  6. Step 6: Final answer
    x = 11,112.77

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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.