Home / 17,421.56-24,031.32-16,255.16

Finding the Fourth Proportional to 17,421.56, 24,031.32 and 16,255.16

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Solution

The fourth proportional to 17,421.56, 24,031.32 and 16,255.16 is: 22,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,421.56 : 24,031.32 = 16,255.16 : x
  2. Step 2: Convert to fraction form
    17,421.56/24,031.32 = 16,255.16/x
  3. Step 3: Cross multiply
    17,421.56x = 24,031.32 × 16,255.16
  4. Step 4: Simplify right side
    17,421.56x = 390,632,951.61
  5. Step 5: Solve for x
    x = 390,632,951.61/17,421.56
  6. Step 6: Final answer
    x = 22,422.39

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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.