Home / 18,870.37-28,203.88-16,479.70

Finding the Fourth Proportional to 18,870.37, 28,203.88 and 16,479.70

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Solution

The fourth proportional to 18,870.37, 28,203.88 and 16,479.70 is: 24,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.37 : 28,203.88 = 16,479.70 : x
  2. Step 2: Convert to fraction form
    18,870.37/28,203.88 = 16,479.70/x
  3. Step 3: Cross multiply
    18,870.37x = 28,203.88 × 16,479.70
  4. Step 4: Simplify right side
    18,870.37x = 464,791,481.24
  5. Step 5: Solve for x
    x = 464,791,481.24/18,870.37
  6. Step 6: Final answer
    x = 24,630.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.