Home / 21,788.68-32,631.20-12,535.24

Finding the Fourth Proportional to 21,788.68, 32,631.20 and 12,535.24

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Solution

The fourth proportional to 21,788.68, 32,631.20 and 12,535.24 is: 18,773.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.68 : 32,631.20 = 12,535.24 : x
  2. Step 2: Convert to fraction form
    21,788.68/32,631.20 = 12,535.24/x
  3. Step 3: Cross multiply
    21,788.68x = 32,631.20 × 12,535.24
  4. Step 4: Simplify right side
    21,788.68x = 409,039,923.49
  5. Step 5: Solve for x
    x = 409,039,923.49/21,788.68
  6. Step 6: Final answer
    x = 18,773.05

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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.