Home / 21,683.36-29,928.04-14,116.52

Finding the Fourth Proportional to 21,683.36, 29,928.04 and 14,116.52

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Solution

The fourth proportional to 21,683.36, 29,928.04 and 14,116.52 is: 19,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.36 : 29,928.04 = 14,116.52 : x
  2. Step 2: Convert to fraction form
    21,683.36/29,928.04 = 14,116.52/x
  3. Step 3: Cross multiply
    21,683.36x = 29,928.04 × 14,116.52
  4. Step 4: Simplify right side
    21,683.36x = 422,479,775.22
  5. Step 5: Solve for x
    x = 422,479,775.22/21,683.36
  6. Step 6: Final answer
    x = 19,484.05

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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.