Home / 27,126.47-40,710.54-12,138.23

Finding the Fourth Proportional to 27,126.47, 40,710.54 and 12,138.23

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Solution

The fourth proportional to 27,126.47, 40,710.54 and 12,138.23 is: 18,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,126.47 : 40,710.54 = 12,138.23 : x
  2. Step 2: Convert to fraction form
    27,126.47/40,710.54 = 12,138.23/x
  3. Step 3: Cross multiply
    27,126.47x = 40,710.54 × 12,138.23
  4. Step 4: Simplify right side
    27,126.47x = 494,153,897.94
  5. Step 5: Solve for x
    x = 494,153,897.94/27,126.47
  6. Step 6: Final answer
    x = 18,216.67

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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.