Home / 19,938.92-29,926.86-10,085.12

Finding the Fourth Proportional to 19,938.92, 29,926.86 and 10,085.12

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Solution

The fourth proportional to 19,938.92, 29,926.86 and 10,085.12 is: 15,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.92 : 29,926.86 = 10,085.12 : x
  2. Step 2: Convert to fraction form
    19,938.92/29,926.86 = 10,085.12/x
  3. Step 3: Cross multiply
    19,938.92x = 29,926.86 × 10,085.12
  4. Step 4: Simplify right side
    19,938.92x = 301,815,974.32
  5. Step 5: Solve for x
    x = 301,815,974.32/19,938.92
  6. Step 6: Final answer
    x = 15,137.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.