Home / 19,272.40-28,881.60-15,330.40

Finding the Fourth Proportional to 19,272.40, 28,881.60 and 15,330.40

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Solution

The fourth proportional to 19,272.40, 28,881.60 and 15,330.40 is: 22,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.40 : 28,881.60 = 15,330.40 : x
  2. Step 2: Convert to fraction form
    19,272.40/28,881.60 = 15,330.40/x
  3. Step 3: Cross multiply
    19,272.40x = 28,881.60 × 15,330.40
  4. Step 4: Simplify right side
    19,272.40x = 442,766,480.64
  5. Step 5: Solve for x
    x = 442,766,480.64/19,272.40
  6. Step 6: Final answer
    x = 22,974.12

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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.