Home / 26,638.38-36,765.63-15,311.34

Finding the Fourth Proportional to 26,638.38, 36,765.63 and 15,311.34

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Solution

The fourth proportional to 26,638.38, 36,765.63 and 15,311.34 is: 21,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,638.38 : 36,765.63 = 15,311.34 : x
  2. Step 2: Convert to fraction form
    26,638.38/36,765.63 = 15,311.34/x
  3. Step 3: Cross multiply
    26,638.38x = 36,765.63 × 15,311.34
  4. Step 4: Simplify right side
    26,638.38x = 562,931,061.24
  5. Step 5: Solve for x
    x = 562,931,061.24/26,638.38
  6. Step 6: Final answer
    x = 21,132.33

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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.