Home / 19,858.43-29,788.36-9,992.34

Finding the Fourth Proportional to 19,858.43, 29,788.36 and 9,992.34

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Solution

The fourth proportional to 19,858.43, 29,788.36 and 9,992.34 is: 14,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.43 : 29,788.36 = 9,992.34 : x
  2. Step 2: Convert to fraction form
    19,858.43/29,788.36 = 9,992.34/x
  3. Step 3: Cross multiply
    19,858.43x = 29,788.36 × 9,992.34
  4. Step 4: Simplify right side
    19,858.43x = 297,655,421.16
  5. Step 5: Solve for x
    x = 297,655,421.16/19,858.43
  6. Step 6: Final answer
    x = 14,988.87

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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.