Home / 19,346.51-28,992.40-8,242.02

Finding the Fourth Proportional to 19,346.51, 28,992.40 and 8,242.02

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Solution

The fourth proportional to 19,346.51, 28,992.40 and 8,242.02 is: 12,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,346.51 : 28,992.40 = 8,242.02 : x
  2. Step 2: Convert to fraction form
    19,346.51/28,992.40 = 8,242.02/x
  3. Step 3: Cross multiply
    19,346.51x = 28,992.40 × 8,242.02
  4. Step 4: Simplify right side
    19,346.51x = 238,955,920.04
  5. Step 5: Solve for x
    x = 238,955,920.04/19,346.51
  6. Step 6: Final answer
    x = 12,351.37

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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.