Home / 28,230.55-42,338.73-11,595.17

Finding the Fourth Proportional to 28,230.55, 42,338.73 and 11,595.17

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Solution

The fourth proportional to 28,230.55, 42,338.73 and 11,595.17 is: 17,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.55 : 42,338.73 = 11,595.17 : x
  2. Step 2: Convert to fraction form
    28,230.55/42,338.73 = 11,595.17/x
  3. Step 3: Cross multiply
    28,230.55x = 42,338.73 × 11,595.17
  4. Step 4: Simplify right side
    28,230.55x = 490,924,771.93
  5. Step 5: Solve for x
    x = 490,924,771.93/28,230.55
  6. Step 6: Final answer
    x = 17,389.84

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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.