Home / 21,854.40-32,789.88-13,095.60

Finding the Fourth Proportional to 21,854.40, 32,789.88 and 13,095.60

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Solution

The fourth proportional to 21,854.40, 32,789.88 and 13,095.60 is: 19,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,854.40 : 32,789.88 = 13,095.60 : x
  2. Step 2: Convert to fraction form
    21,854.40/32,789.88 = 13,095.60/x
  3. Step 3: Cross multiply
    21,854.40x = 32,789.88 × 13,095.60
  4. Step 4: Simplify right side
    21,854.40x = 429,403,152.53
  5. Step 5: Solve for x
    x = 429,403,152.53/21,854.40
  6. Step 6: Final answer
    x = 19,648.36

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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.