Home / 20,339.94-28,045.20-16,303.55

Finding the Fourth Proportional to 20,339.94, 28,045.20 and 16,303.55

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Solution

The fourth proportional to 20,339.94, 28,045.20 and 16,303.55 is: 22,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.94 : 28,045.20 = 16,303.55 : x
  2. Step 2: Convert to fraction form
    20,339.94/28,045.20 = 16,303.55/x
  3. Step 3: Cross multiply
    20,339.94x = 28,045.20 × 16,303.55
  4. Step 4: Simplify right side
    20,339.94x = 457,236,180.23
  5. Step 5: Solve for x
    x = 457,236,180.23/20,339.94
  6. Step 6: Final answer
    x = 22,479.72

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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.