Home / 29,209.52-40,309.06-15,780.73

Finding the Fourth Proportional to 29,209.52, 40,309.06 and 15,780.73

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Solution

The fourth proportional to 29,209.52, 40,309.06 and 15,780.73 is: 21,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,209.52 : 40,309.06 = 15,780.73 : x
  2. Step 2: Convert to fraction form
    29,209.52/40,309.06 = 15,780.73/x
  3. Step 3: Cross multiply
    29,209.52x = 40,309.06 × 15,780.73
  4. Step 4: Simplify right side
    29,209.52x = 636,106,392.41
  5. Step 5: Solve for x
    x = 636,106,392.41/29,209.52
  6. Step 6: Final answer
    x = 21,777.37

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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.