Home / 29,269.64-40,392.18-15,840.89

Finding the Fourth Proportional to 29,269.64, 40,392.18 and 15,840.89

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Solution

The fourth proportional to 29,269.64, 40,392.18 and 15,840.89 is: 21,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,269.64 : 40,392.18 = 15,840.89 : x
  2. Step 2: Convert to fraction form
    29,269.64/40,392.18 = 15,840.89/x
  3. Step 3: Cross multiply
    29,269.64x = 40,392.18 × 15,840.89
  4. Step 4: Simplify right side
    29,269.64x = 639,847,878.28
  5. Step 5: Solve for x
    x = 639,847,878.28/29,269.64
  6. Step 6: Final answer
    x = 21,860.47

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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.