Home / 21,248.96-29,323.32-11,817.68

Finding the Fourth Proportional to 21,248.96, 29,323.32 and 11,817.68

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Solution

The fourth proportional to 21,248.96, 29,323.32 and 11,817.68 is: 16,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.96 : 29,323.32 = 11,817.68 : x
  2. Step 2: Convert to fraction form
    21,248.96/29,323.32 = 11,817.68/x
  3. Step 3: Cross multiply
    21,248.96x = 29,323.32 × 11,817.68
  4. Step 4: Simplify right side
    21,248.96x = 346,533,612.30
  5. Step 5: Solve for x
    x = 346,533,612.30/21,248.96
  6. Step 6: Final answer
    x = 16,308.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.