Home / 21,437.73-29,567.80-18,780.52

Finding the Fourth Proportional to 21,437.73, 29,567.80 and 18,780.52

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Solution

The fourth proportional to 21,437.73, 29,567.80 and 18,780.52 is: 25,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.73 : 29,567.80 = 18,780.52 : x
  2. Step 2: Convert to fraction form
    21,437.73/29,567.80 = 18,780.52/x
  3. Step 3: Cross multiply
    21,437.73x = 29,567.80 × 18,780.52
  4. Step 4: Simplify right side
    21,437.73x = 555,298,659.26
  5. Step 5: Solve for x
    x = 555,298,659.26/21,437.73
  6. Step 6: Final answer
    x = 25,902.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.