Home / 21,732.79-30,015.93-14,646.91

Finding the Fourth Proportional to 21,732.79, 30,015.93 and 14,646.91

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Solution

The fourth proportional to 21,732.79, 30,015.93 and 14,646.91 is: 20,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.79 : 30,015.93 = 14,646.91 : x
  2. Step 2: Convert to fraction form
    21,732.79/30,015.93 = 14,646.91/x
  3. Step 3: Cross multiply
    21,732.79x = 30,015.93 × 14,646.91
  4. Step 4: Simplify right side
    21,732.79x = 439,640,625.28
  5. Step 5: Solve for x
    x = 439,640,625.28/21,732.79
  6. Step 6: Final answer
    x = 20,229.37

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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.