Home / 19,281.62-28,919.58-5,242.46

Finding the Fourth Proportional to 19,281.62, 28,919.58 and 5,242.46

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Solution

The fourth proportional to 19,281.62, 28,919.58 and 5,242.46 is: 7,862.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.62 : 28,919.58 = 5,242.46 : x
  2. Step 2: Convert to fraction form
    19,281.62/28,919.58 = 5,242.46/x
  3. Step 3: Cross multiply
    19,281.62x = 28,919.58 × 5,242.46
  4. Step 4: Simplify right side
    19,281.62x = 151,609,741.37
  5. Step 5: Solve for x
    x = 151,609,741.37/19,281.62
  6. Step 6: Final answer
    x = 7,862.92

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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.