Home / 20,259.64-30,378.06-13,941.94

Finding the Fourth Proportional to 20,259.64, 30,378.06 and 13,941.94

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Solution

The fourth proportional to 20,259.64, 30,378.06 and 13,941.94 is: 20,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.64 : 30,378.06 = 13,941.94 : x
  2. Step 2: Convert to fraction form
    20,259.64/30,378.06 = 13,941.94/x
  3. Step 3: Cross multiply
    20,259.64x = 30,378.06 × 13,941.94
  4. Step 4: Simplify right side
    20,259.64x = 423,529,089.84
  5. Step 5: Solve for x
    x = 423,529,089.84/20,259.64
  6. Step 6: Final answer
    x = 20,905.06

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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.