Home / 19,928.71-27,471.55-16,385.77

Finding the Fourth Proportional to 19,928.71, 27,471.55 and 16,385.77

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Solution

The fourth proportional to 19,928.71, 27,471.55 and 16,385.77 is: 22,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.71 : 27,471.55 = 16,385.77 : x
  2. Step 2: Convert to fraction form
    19,928.71/27,471.55 = 16,385.77/x
  3. Step 3: Cross multiply
    19,928.71x = 27,471.55 × 16,385.77
  4. Step 4: Simplify right side
    19,928.71x = 450,142,499.84
  5. Step 5: Solve for x
    x = 450,142,499.84/19,928.71
  6. Step 6: Final answer
    x = 22,587.64

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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.