Home / 29,479.26-40,729.08-20,566.55

Finding the Fourth Proportional to 29,479.26, 40,729.08 and 20,566.55

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Solution

The fourth proportional to 29,479.26, 40,729.08 and 20,566.55 is: 28,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,479.26 : 40,729.08 = 20,566.55 : x
  2. Step 2: Convert to fraction form
    29,479.26/40,729.08 = 20,566.55/x
  3. Step 3: Cross multiply
    29,479.26x = 40,729.08 × 20,566.55
  4. Step 4: Simplify right side
    29,479.26x = 837,656,353.80
  5. Step 5: Solve for x
    x = 837,656,353.80/29,479.26
  6. Step 6: Final answer
    x = 28,415.11

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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.