Home / 18,731.70-28,014.93-16,666.20

Finding the Fourth Proportional to 18,731.70, 28,014.93 and 16,666.20

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Solution

The fourth proportional to 18,731.70, 28,014.93 and 16,666.20 is: 24,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.70 : 28,014.93 = 16,666.20 : x
  2. Step 2: Convert to fraction form
    18,731.70/28,014.93 = 16,666.20/x
  3. Step 3: Cross multiply
    18,731.70x = 28,014.93 × 16,666.20
  4. Step 4: Simplify right side
    18,731.70x = 466,902,426.37
  5. Step 5: Solve for x
    x = 466,902,426.37/18,731.70
  6. Step 6: Final answer
    x = 24,925.79

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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.