Home / 23,062.08-31,827.36-12,991.62

Finding the Fourth Proportional to 23,062.08, 31,827.36 and 12,991.62

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Solution

The fourth proportional to 23,062.08, 31,827.36 and 12,991.62 is: 17,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,062.08 : 31,827.36 = 12,991.62 : x
  2. Step 2: Convert to fraction form
    23,062.08/31,827.36 = 12,991.62/x
  3. Step 3: Cross multiply
    23,062.08x = 31,827.36 × 12,991.62
  4. Step 4: Simplify right side
    23,062.08x = 413,488,966.72
  5. Step 5: Solve for x
    x = 413,488,966.72/23,062.08
  6. Step 6: Final answer
    x = 17,929.39

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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.