Home / 29,269.65-40,392.21-15,840.90

Finding the Fourth Proportional to 29,269.65, 40,392.21 and 15,840.90

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Solution

The fourth proportional to 29,269.65, 40,392.21 and 15,840.90 is: 21,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,269.65 : 40,392.21 = 15,840.90 : x
  2. Step 2: Convert to fraction form
    29,269.65/40,392.21 = 15,840.90/x
  3. Step 3: Cross multiply
    29,269.65x = 40,392.21 × 15,840.90
  4. Step 4: Simplify right side
    29,269.65x = 639,848,959.39
  5. Step 5: Solve for x
    x = 639,848,959.39/29,269.65
  6. Step 6: Final answer
    x = 21,860.49

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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.