Home / 20,176.60-30,271.06-10,322.80

Finding the Fourth Proportional to 20,176.60, 30,271.06 and 10,322.80

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Solution

The fourth proportional to 20,176.60, 30,271.06 and 10,322.80 is: 15,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.60 : 30,271.06 = 10,322.80 : x
  2. Step 2: Convert to fraction form
    20,176.60/30,271.06 = 10,322.80/x
  3. Step 3: Cross multiply
    20,176.60x = 30,271.06 × 10,322.80
  4. Step 4: Simplify right side
    20,176.60x = 312,482,098.17
  5. Step 5: Solve for x
    x = 312,482,098.17/20,176.60
  6. Step 6: Final answer
    x = 15,487.35

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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.