Home / 20,592.08-28,417.56-11,639.61

Finding the Fourth Proportional to 20,592.08, 28,417.56 and 11,639.61

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Solution

The fourth proportional to 20,592.08, 28,417.56 and 11,639.61 is: 16,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.08 : 28,417.56 = 11,639.61 : x
  2. Step 2: Convert to fraction form
    20,592.08/28,417.56 = 11,639.61/x
  3. Step 3: Cross multiply
    20,592.08x = 28,417.56 × 11,639.61
  4. Step 4: Simplify right side
    20,592.08x = 330,769,315.55
  5. Step 5: Solve for x
    x = 330,769,315.55/20,592.08
  6. Step 6: Final answer
    x = 16,062.94

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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.