Home / 18,677.71-25,722.42-16,438.77

Finding the Fourth Proportional to 18,677.71, 25,722.42 and 16,438.77

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Solution

The fourth proportional to 18,677.71, 25,722.42 and 16,438.77 is: 22,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.71 : 25,722.42 = 16,438.77 : x
  2. Step 2: Convert to fraction form
    18,677.71/25,722.42 = 16,438.77/x
  3. Step 3: Cross multiply
    18,677.71x = 25,722.42 × 16,438.77
  4. Step 4: Simplify right side
    18,677.71x = 422,844,946.22
  5. Step 5: Solve for x
    x = 422,844,946.22/18,677.71
  6. Step 6: Final answer
    x = 22,639.01

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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.