Home / 19,624.40-29,436.60-18,933.20

Finding the Fourth Proportional to 19,624.40, 29,436.60 and 18,933.20

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Solution

The fourth proportional to 19,624.40, 29,436.60 and 18,933.20 is: 28,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,624.40 : 29,436.60 = 18,933.20 : x
  2. Step 2: Convert to fraction form
    19,624.40/29,436.60 = 18,933.20/x
  3. Step 3: Cross multiply
    19,624.40x = 29,436.60 × 18,933.20
  4. Step 4: Simplify right side
    19,624.40x = 557,329,035.12
  5. Step 5: Solve for x
    x = 557,329,035.12/19,624.40
  6. Step 6: Final answer
    x = 28,399.80

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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.