Home / 19,930.90-29,875.84-8,842.81

Finding the Fourth Proportional to 19,930.90, 29,875.84 and 8,842.81

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Solution

The fourth proportional to 19,930.90, 29,875.84 and 8,842.81 is: 13,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.90 : 29,875.84 = 8,842.81 : x
  2. Step 2: Convert to fraction form
    19,930.90/29,875.84 = 8,842.81/x
  3. Step 3: Cross multiply
    19,930.90x = 29,875.84 × 8,842.81
  4. Step 4: Simplify right side
    19,930.90x = 264,186,376.71
  5. Step 5: Solve for x
    x = 264,186,376.71/19,930.90
  6. Step 6: Final answer
    x = 13,255.12

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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.