Home / 20,646.24-28,482.60-12,257.88

Finding the Fourth Proportional to 20,646.24, 28,482.60 and 12,257.88

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Solution

The fourth proportional to 20,646.24, 28,482.60 and 12,257.88 is: 16,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.24 : 28,482.60 = 12,257.88 : x
  2. Step 2: Convert to fraction form
    20,646.24/28,482.60 = 12,257.88/x
  3. Step 3: Cross multiply
    20,646.24x = 28,482.60 × 12,257.88
  4. Step 4: Simplify right side
    20,646.24x = 349,136,292.89
  5. Step 5: Solve for x
    x = 349,136,292.89/20,646.24
  6. Step 6: Final answer
    x = 16,910.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.