Home / 21,459.48-29,612.86-12,508.44

Finding the Fourth Proportional to 21,459.48, 29,612.86 and 12,508.44

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Solution

The fourth proportional to 21,459.48, 29,612.86 and 12,508.44 is: 17,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.48 : 29,612.86 = 12,508.44 : x
  2. Step 2: Convert to fraction form
    21,459.48/29,612.86 = 12,508.44/x
  3. Step 3: Cross multiply
    21,459.48x = 29,612.86 × 12,508.44
  4. Step 4: Simplify right side
    21,459.48x = 370,410,682.54
  5. Step 5: Solve for x
    x = 370,410,682.54/21,459.48
  6. Step 6: Final answer
    x = 17,260.93

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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.