Home / 18,731.01-28,110.34-8,870.27

Finding the Fourth Proportional to 18,731.01, 28,110.34 and 8,870.27

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Solution

The fourth proportional to 18,731.01, 28,110.34 and 8,870.27 is: 13,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.01 : 28,110.34 = 8,870.27 : x
  2. Step 2: Convert to fraction form
    18,731.01/28,110.34 = 8,870.27/x
  3. Step 3: Cross multiply
    18,731.01x = 28,110.34 × 8,870.27
  4. Step 4: Simplify right side
    18,731.01x = 249,346,305.59
  5. Step 5: Solve for x
    x = 249,346,305.59/18,731.01
  6. Step 6: Final answer
    x = 13,311.95

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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.