Home / 21,139.67-29,106.36-17,946.35

Finding the Fourth Proportional to 21,139.67, 29,106.36 and 17,946.35

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Solution

The fourth proportional to 21,139.67, 29,106.36 and 17,946.35 is: 24,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,139.67 : 29,106.36 = 17,946.35 : x
  2. Step 2: Convert to fraction form
    21,139.67/29,106.36 = 17,946.35/x
  3. Step 3: Cross multiply
    21,139.67x = 29,106.36 × 17,946.35
  4. Step 4: Simplify right side
    21,139.67x = 522,352,996.55
  5. Step 5: Solve for x
    x = 522,352,996.55/21,139.67
  6. Step 6: Final answer
    x = 24,709.61

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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.