Home / 27,764.19-38,267.91-21,047.67

Finding the Fourth Proportional to 27,764.19, 38,267.91 and 21,047.67

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Solution

The fourth proportional to 27,764.19, 38,267.91 and 21,047.67 is: 29,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.19 : 38,267.91 = 21,047.67 : x
  2. Step 2: Convert to fraction form
    27,764.19/38,267.91 = 21,047.67/x
  3. Step 3: Cross multiply
    27,764.19x = 38,267.91 × 21,047.67
  4. Step 4: Simplify right side
    27,764.19x = 805,450,341.27
  5. Step 5: Solve for x
    x = 805,450,341.27/27,764.19
  6. Step 6: Final answer
    x = 29,010.40

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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.