Home / 28,986.71-43,478.67-16,985.55

Finding the Fourth Proportional to 28,986.71, 43,478.67 and 16,985.55

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Solution

The fourth proportional to 28,986.71, 43,478.67 and 16,985.55 is: 25,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.71 : 43,478.67 = 16,985.55 : x
  2. Step 2: Convert to fraction form
    28,986.71/43,478.67 = 16,985.55/x
  3. Step 3: Cross multiply
    28,986.71x = 43,478.67 × 16,985.55
  4. Step 4: Simplify right side
    28,986.71x = 738,509,105.39
  5. Step 5: Solve for x
    x = 738,509,105.39/28,986.71
  6. Step 6: Final answer
    x = 25,477.51

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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.