Home / 18,989.95-28,458.18-14,530.35

Finding the Fourth Proportional to 18,989.95, 28,458.18 and 14,530.35

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Solution

The fourth proportional to 18,989.95, 28,458.18 and 14,530.35 is: 21,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.95 : 28,458.18 = 14,530.35 : x
  2. Step 2: Convert to fraction form
    18,989.95/28,458.18 = 14,530.35/x
  3. Step 3: Cross multiply
    18,989.95x = 28,458.18 × 14,530.35
  4. Step 4: Simplify right side
    18,989.95x = 413,507,315.76
  5. Step 5: Solve for x
    x = 413,507,315.76/18,989.95
  6. Step 6: Final answer
    x = 21,775.06

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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.