Home / 21,341.21-32,031.18-10,818.55

Finding the Fourth Proportional to 21,341.21, 32,031.18 and 10,818.55

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Solution

The fourth proportional to 21,341.21, 32,031.18 and 10,818.55 is: 16,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.21 : 32,031.18 = 10,818.55 : x
  2. Step 2: Convert to fraction form
    21,341.21/32,031.18 = 10,818.55/x
  3. Step 3: Cross multiply
    21,341.21x = 32,031.18 × 10,818.55
  4. Step 4: Simplify right side
    21,341.21x = 346,530,922.39
  5. Step 5: Solve for x
    x = 346,530,922.39/21,341.21
  6. Step 6: Final answer
    x = 16,237.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.