Home / 29,124.20-43,686.30-28,638.20

Finding the Fourth Proportional to 29,124.20, 43,686.30 and 28,638.20

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Solution

The fourth proportional to 29,124.20, 43,686.30 and 28,638.20 is: 42,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.20 : 43,686.30 = 28,638.20 : x
  2. Step 2: Convert to fraction form
    29,124.20/43,686.30 = 28,638.20/x
  3. Step 3: Cross multiply
    29,124.20x = 43,686.30 × 28,638.20
  4. Step 4: Simplify right side
    29,124.20x = 1,251,096,996.66
  5. Step 5: Solve for x
    x = 1,251,096,996.66/29,124.20
  6. Step 6: Final answer
    x = 42,957.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.