Home / 21,284.96-31,929.26-8,802.59

Finding the Fourth Proportional to 21,284.96, 31,929.26 and 8,802.59

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Solution

The fourth proportional to 21,284.96, 31,929.26 and 8,802.59 is: 13,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.96 : 31,929.26 = 8,802.59 : x
  2. Step 2: Convert to fraction form
    21,284.96/31,929.26 = 8,802.59/x
  3. Step 3: Cross multiply
    21,284.96x = 31,929.26 × 8,802.59
  4. Step 4: Simplify right side
    21,284.96x = 281,059,981.12
  5. Step 5: Solve for x
    x = 281,059,981.12/21,284.96
  6. Step 6: Final answer
    x = 13,204.63

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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.