Home / 22,487.26-31,031.58-12,415.48

Finding the Fourth Proportional to 22,487.26, 31,031.58 and 12,415.48

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Solution

The fourth proportional to 22,487.26, 31,031.58 and 12,415.48 is: 17,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.26 : 31,031.58 = 12,415.48 : x
  2. Step 2: Convert to fraction form
    22,487.26/31,031.58 = 12,415.48/x
  3. Step 3: Cross multiply
    22,487.26x = 31,031.58 × 12,415.48
  4. Step 4: Simplify right side
    22,487.26x = 385,271,898.78
  5. Step 5: Solve for x
    x = 385,271,898.78/22,487.26
  6. Step 6: Final answer
    x = 17,132.90

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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.