Home / 29,013.89-40,043.21-20,973.62

Finding the Fourth Proportional to 29,013.89, 40,043.21 and 20,973.62

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Solution

The fourth proportional to 29,013.89, 40,043.21 and 20,973.62 is: 28,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,013.89 : 40,043.21 = 20,973.62 : x
  2. Step 2: Convert to fraction form
    29,013.89/40,043.21 = 20,973.62/x
  3. Step 3: Cross multiply
    29,013.89x = 40,043.21 × 20,973.62
  4. Step 4: Simplify right side
    29,013.89x = 839,850,765.04
  5. Step 5: Solve for x
    x = 839,850,765.04/29,013.89
  6. Step 6: Final answer
    x = 28,946.51

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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.