Home / 18,681.44-25,790.40-14,639.94

Finding the Fourth Proportional to 18,681.44, 25,790.40 and 14,639.94

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Solution

The fourth proportional to 18,681.44, 25,790.40 and 14,639.94 is: 20,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.44 : 25,790.40 = 14,639.94 : x
  2. Step 2: Convert to fraction form
    18,681.44/25,790.40 = 14,639.94/x
  3. Step 3: Cross multiply
    18,681.44x = 25,790.40 × 14,639.94
  4. Step 4: Simplify right side
    18,681.44x = 377,569,908.58
  5. Step 5: Solve for x
    x = 377,569,908.58/18,681.44
  6. Step 6: Final answer
    x = 20,210.97

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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.