Home / 27,945.30-38,564.52-15,370.05

Finding the Fourth Proportional to 27,945.30, 38,564.52 and 15,370.05

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Solution

The fourth proportional to 27,945.30, 38,564.52 and 15,370.05 is: 21,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.30 : 38,564.52 = 15,370.05 : x
  2. Step 2: Convert to fraction form
    27,945.30/38,564.52 = 15,370.05/x
  3. Step 3: Cross multiply
    27,945.30x = 38,564.52 × 15,370.05
  4. Step 4: Simplify right side
    27,945.30x = 592,738,600.63
  5. Step 5: Solve for x
    x = 592,738,600.63/27,945.30
  6. Step 6: Final answer
    x = 21,210.67

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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.