Home / 21,068.50-29,074.14-11,636.86

Finding the Fourth Proportional to 21,068.50, 29,074.14 and 11,636.86

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Solution

The fourth proportional to 21,068.50, 29,074.14 and 11,636.86 is: 16,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.50 : 29,074.14 = 11,636.86 : x
  2. Step 2: Convert to fraction form
    21,068.50/29,074.14 = 11,636.86/x
  3. Step 3: Cross multiply
    21,068.50x = 29,074.14 × 11,636.86
  4. Step 4: Simplify right side
    21,068.50x = 338,331,696.80
  5. Step 5: Solve for x
    x = 338,331,696.80/21,068.50
  6. Step 6: Final answer
    x = 16,058.65

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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.