Home / 26,379.34-36,421.05-20,736.88

Finding the Fourth Proportional to 26,379.34, 36,421.05 and 20,736.88

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Solution

The fourth proportional to 26,379.34, 36,421.05 and 20,736.88 is: 28,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.34 : 36,421.05 = 20,736.88 : x
  2. Step 2: Convert to fraction form
    26,379.34/36,421.05 = 20,736.88/x
  3. Step 3: Cross multiply
    26,379.34x = 36,421.05 × 20,736.88
  4. Step 4: Simplify right side
    26,379.34x = 755,258,943.32
  5. Step 5: Solve for x
    x = 755,258,943.32/26,379.34
  6. Step 6: Final answer
    x = 28,630.70

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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.