Home / 21,651.64-32,529.30-13,875.64

Finding the Fourth Proportional to 21,651.64, 32,529.30 and 13,875.64

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Solution

The fourth proportional to 21,651.64, 32,529.30 and 13,875.64 is: 20,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.64 : 32,529.30 = 13,875.64 : x
  2. Step 2: Convert to fraction form
    21,651.64/32,529.30 = 13,875.64/x
  3. Step 3: Cross multiply
    21,651.64x = 32,529.30 × 13,875.64
  4. Step 4: Simplify right side
    21,651.64x = 451,364,856.25
  5. Step 5: Solve for x
    x = 451,364,856.25/21,651.64
  6. Step 6: Final answer
    x = 20,846.68

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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.