Home / 19,242.57-28,842.28-12,591.87

Finding the Fourth Proportional to 19,242.57, 28,842.28 and 12,591.87

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Solution

The fourth proportional to 19,242.57, 28,842.28 and 12,591.87 is: 18,873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.57 : 28,842.28 = 12,591.87 : x
  2. Step 2: Convert to fraction form
    19,242.57/28,842.28 = 12,591.87/x
  3. Step 3: Cross multiply
    19,242.57x = 28,842.28 × 12,591.87
  4. Step 4: Simplify right side
    19,242.57x = 363,178,100.63
  5. Step 5: Solve for x
    x = 363,178,100.63/19,242.57
  6. Step 6: Final answer
    x = 18,873.68

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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.