Home / 21,440.58-29,587.62-12,009.48

Finding the Fourth Proportional to 21,440.58, 29,587.62 and 12,009.48

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Solution

The fourth proportional to 21,440.58, 29,587.62 and 12,009.48 is: 16,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.58 : 29,587.62 = 12,009.48 : x
  2. Step 2: Convert to fraction form
    21,440.58/29,587.62 = 12,009.48/x
  3. Step 3: Cross multiply
    21,440.58x = 29,587.62 × 12,009.48
  4. Step 4: Simplify right side
    21,440.58x = 355,331,930.64
  5. Step 5: Solve for x
    x = 355,331,930.64/21,440.58
  6. Step 6: Final answer
    x = 16,572.87

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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.