Home / 20,646.21-28,492.46-12,146.82

Finding the Fourth Proportional to 20,646.21, 28,492.46 and 12,146.82

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Solution

The fourth proportional to 20,646.21, 28,492.46 and 12,146.82 is: 16,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.21 : 28,492.46 = 12,146.82 : x
  2. Step 2: Convert to fraction form
    20,646.21/28,492.46 = 12,146.82/x
  3. Step 3: Cross multiply
    20,646.21x = 28,492.46 × 12,146.82
  4. Step 4: Simplify right side
    20,646.21x = 346,092,722.24
  5. Step 5: Solve for x
    x = 346,092,722.24/20,646.21
  6. Step 6: Final answer
    x = 16,763.01

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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.