Home / 19,280.30-28,933.90-7,445.42

Finding the Fourth Proportional to 19,280.30, 28,933.90 and 7,445.42

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Solution

The fourth proportional to 19,280.30, 28,933.90 and 7,445.42 is: 11,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.30 : 28,933.90 = 7,445.42 : x
  2. Step 2: Convert to fraction form
    19,280.30/28,933.90 = 7,445.42/x
  3. Step 3: Cross multiply
    19,280.30x = 28,933.90 × 7,445.42
  4. Step 4: Simplify right side
    19,280.30x = 215,425,037.74
  5. Step 5: Solve for x
    x = 215,425,037.74/19,280.30
  6. Step 6: Final answer
    x = 11,173.32

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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.