Home / 18,686.98-28,043.61-16,900.38

Finding the Fourth Proportional to 18,686.98, 28,043.61 and 16,900.38

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Solution

The fourth proportional to 18,686.98, 28,043.61 and 16,900.38 is: 25,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.98 : 28,043.61 = 16,900.38 : x
  2. Step 2: Convert to fraction form
    18,686.98/28,043.61 = 16,900.38/x
  3. Step 3: Cross multiply
    18,686.98x = 28,043.61 × 16,900.38
  4. Step 4: Simplify right side
    18,686.98x = 473,947,597.36
  5. Step 5: Solve for x
    x = 473,947,597.36/18,686.98
  6. Step 6: Final answer
    x = 25,362.45

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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.