Home / 20,672.64-28,528.48-11,722.08

Finding the Fourth Proportional to 20,672.64, 28,528.48 and 11,722.08

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Solution

The fourth proportional to 20,672.64, 28,528.48 and 11,722.08 is: 16,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.64 : 28,528.48 = 11,722.08 : x
  2. Step 2: Convert to fraction form
    20,672.64/28,528.48 = 11,722.08/x
  3. Step 3: Cross multiply
    20,672.64x = 28,528.48 × 11,722.08
  4. Step 4: Simplify right side
    20,672.64x = 334,413,124.84
  5. Step 5: Solve for x
    x = 334,413,124.84/20,672.64
  6. Step 6: Final answer
    x = 16,176.60

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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.