Home / 20,374.02-30,479.22-17,630.55

Finding the Fourth Proportional to 20,374.02, 30,479.22 and 17,630.55

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Solution

The fourth proportional to 20,374.02, 30,479.22 and 17,630.55 is: 26,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.02 : 30,479.22 = 17,630.55 : x
  2. Step 2: Convert to fraction form
    20,374.02/30,479.22 = 17,630.55/x
  3. Step 3: Cross multiply
    20,374.02x = 30,479.22 × 17,630.55
  4. Step 4: Simplify right side
    20,374.02x = 537,365,412.17
  5. Step 5: Solve for x
    x = 537,365,412.17/20,374.02
  6. Step 6: Final answer
    x = 26,375.03

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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.