Home / 27,811.40-38,342.57-23,013.67

Finding the Fourth Proportional to 27,811.40, 38,342.57 and 23,013.67

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Solution

The fourth proportional to 27,811.40, 38,342.57 and 23,013.67 is: 31,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.40 : 38,342.57 = 23,013.67 : x
  2. Step 2: Convert to fraction form
    27,811.40/38,342.57 = 23,013.67/x
  3. Step 3: Cross multiply
    27,811.40x = 38,342.57 × 23,013.67
  4. Step 4: Simplify right side
    27,811.40x = 882,403,113.90
  5. Step 5: Solve for x
    x = 882,403,113.90/27,811.40
  6. Step 6: Final answer
    x = 31,728.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.