Home / 21,683.86-29,928.73-14,117.02

Finding the Fourth Proportional to 21,683.86, 29,928.73 and 14,117.02

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Solution

The fourth proportional to 21,683.86, 29,928.73 and 14,117.02 is: 19,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.86 : 29,928.73 = 14,117.02 : x
  2. Step 2: Convert to fraction form
    21,683.86/29,928.73 = 14,117.02/x
  3. Step 3: Cross multiply
    21,683.86x = 29,928.73 × 14,117.02
  4. Step 4: Simplify right side
    21,683.86x = 422,504,479.98
  5. Step 5: Solve for x
    x = 422,504,479.98/21,683.86
  6. Step 6: Final answer
    x = 19,484.74

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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.