Home / 18,685.55-28,031.06-5,536.22

Finding the Fourth Proportional to 18,685.55, 28,031.06 and 5,536.22

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Solution

The fourth proportional to 18,685.55, 28,031.06 and 5,536.22 is: 8,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.55 : 28,031.06 = 5,536.22 : x
  2. Step 2: Convert to fraction form
    18,685.55/28,031.06 = 5,536.22/x
  3. Step 3: Cross multiply
    18,685.55x = 28,031.06 × 5,536.22
  4. Step 4: Simplify right side
    18,685.55x = 155,185,988.68
  5. Step 5: Solve for x
    x = 155,185,988.68/18,685.55
  6. Step 6: Final answer
    x = 8,305.13

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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.