Home / 21,124.93-29,121.35-16,080.37

Finding the Fourth Proportional to 21,124.93, 29,121.35 and 16,080.37

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Solution

The fourth proportional to 21,124.93, 29,121.35 and 16,080.37 is: 22,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.93 : 29,121.35 = 16,080.37 : x
  2. Step 2: Convert to fraction form
    21,124.93/29,121.35 = 16,080.37/x
  3. Step 3: Cross multiply
    21,124.93x = 29,121.35 × 16,080.37
  4. Step 4: Simplify right side
    21,124.93x = 468,281,937.29
  5. Step 5: Solve for x
    x = 468,281,937.29/21,124.93
  6. Step 6: Final answer
    x = 22,167.27

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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.