Home / 20,263.37-30,405.75-14,378.28

Finding the Fourth Proportional to 20,263.37, 30,405.75 and 14,378.28

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Solution

The fourth proportional to 20,263.37, 30,405.75 and 14,378.28 is: 21,575.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.37 : 30,405.75 = 14,378.28 : x
  2. Step 2: Convert to fraction form
    20,263.37/30,405.75 = 14,378.28/x
  3. Step 3: Cross multiply
    20,263.37x = 30,405.75 × 14,378.28
  4. Step 4: Simplify right side
    20,263.37x = 437,182,219.17
  5. Step 5: Solve for x
    x = 437,182,219.17/20,263.37
  6. Step 6: Final answer
    x = 21,575.01

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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.