Home / 25,426.92-38,036.70-21,279.72

Finding the Fourth Proportional to 25,426.92, 38,036.70 and 21,279.72

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Solution

The fourth proportional to 25,426.92, 38,036.70 and 21,279.72 is: 31,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,426.92 : 38,036.70 = 21,279.72 : x
  2. Step 2: Convert to fraction form
    25,426.92/38,036.70 = 21,279.72/x
  3. Step 3: Cross multiply
    25,426.92x = 38,036.70 × 21,279.72
  4. Step 4: Simplify right side
    25,426.92x = 809,410,325.72
  5. Step 5: Solve for x
    x = 809,410,325.72/25,426.92
  6. Step 6: Final answer
    x = 31,832.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.