Home / 18,678.30-28,017.37-5,529.63

Finding the Fourth Proportional to 18,678.30, 28,017.37 and 5,529.63

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Solution

The fourth proportional to 18,678.30, 28,017.37 and 5,529.63 is: 8,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.30 : 28,017.37 = 5,529.63 : x
  2. Step 2: Convert to fraction form
    18,678.30/28,017.37 = 5,529.63/x
  3. Step 3: Cross multiply
    18,678.30x = 28,017.37 × 5,529.63
  4. Step 4: Simplify right side
    18,678.30x = 154,925,689.67
  5. Step 5: Solve for x
    x = 154,925,689.67/18,678.30
  6. Step 6: Final answer
    x = 8,294.42

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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.