Home / 21,048.08-29,052.40-12,442.23

Finding the Fourth Proportional to 21,048.08, 29,052.40 and 12,442.23

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Solution

The fourth proportional to 21,048.08, 29,052.40 and 12,442.23 is: 17,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.08 : 29,052.40 = 12,442.23 : x
  2. Step 2: Convert to fraction form
    21,048.08/29,052.40 = 12,442.23/x
  3. Step 3: Cross multiply
    21,048.08x = 29,052.40 × 12,442.23
  4. Step 4: Simplify right side
    21,048.08x = 361,476,681.79
  5. Step 5: Solve for x
    x = 361,476,681.79/21,048.08
  6. Step 6: Final answer
    x = 17,173.86

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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.