Home / 27,456.87-37,895.47-15,520.18

Finding the Fourth Proportional to 27,456.87, 37,895.47 and 15,520.18

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Solution

The fourth proportional to 27,456.87, 37,895.47 and 15,520.18 is: 21,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.87 : 37,895.47 = 15,520.18 : x
  2. Step 2: Convert to fraction form
    27,456.87/37,895.47 = 15,520.18/x
  3. Step 3: Cross multiply
    27,456.87x = 37,895.47 × 15,520.18
  4. Step 4: Simplify right side
    27,456.87x = 588,144,603.33
  5. Step 5: Solve for x
    x = 588,144,603.33/27,456.87
  6. Step 6: Final answer
    x = 21,420.67

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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.