Home / 21,505.64-32,248.10-16,813.76

Finding the Fourth Proportional to 21,505.64, 32,248.10 and 16,813.76

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Solution

The fourth proportional to 21,505.64, 32,248.10 and 16,813.76 is: 25,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.64 : 32,248.10 = 16,813.76 : x
  2. Step 2: Convert to fraction form
    21,505.64/32,248.10 = 16,813.76/x
  3. Step 3: Cross multiply
    21,505.64x = 32,248.10 × 16,813.76
  4. Step 4: Simplify right side
    21,505.64x = 542,211,813.86
  5. Step 5: Solve for x
    x = 542,211,813.86/21,505.64
  6. Step 6: Final answer
    x = 25,212.54

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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.