Home / 27,765.19-38,269.29-21,048.67

Finding the Fourth Proportional to 27,765.19, 38,269.29 and 21,048.67

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Solution

The fourth proportional to 27,765.19, 38,269.29 and 21,048.67 is: 29,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.19 : 38,269.29 = 21,048.67 : x
  2. Step 2: Convert to fraction form
    27,765.19/38,269.29 = 21,048.67/x
  3. Step 3: Cross multiply
    27,765.19x = 38,269.29 × 21,048.67
  4. Step 4: Simplify right side
    27,765.19x = 805,517,656.34
  5. Step 5: Solve for x
    x = 805,517,656.34/27,765.19
  6. Step 6: Final answer
    x = 29,011.78

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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.