Home / 28,299.79-42,447.22-9,579.42

Finding the Fourth Proportional to 28,299.79, 42,447.22 and 9,579.42

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Solution

The fourth proportional to 28,299.79, 42,447.22 and 9,579.42 is: 14,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.79 : 42,447.22 = 9,579.42 : x
  2. Step 2: Convert to fraction form
    28,299.79/42,447.22 = 9,579.42/x
  3. Step 3: Cross multiply
    28,299.79x = 42,447.22 × 9,579.42
  4. Step 4: Simplify right side
    28,299.79x = 406,619,748.21
  5. Step 5: Solve for x
    x = 406,619,748.21/28,299.79
  6. Step 6: Final answer
    x = 14,368.30

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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.