Home / 30,391.20-45,541.44-18,714.24

Finding the Fourth Proportional to 30,391.20, 45,541.44 and 18,714.24

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Solution

The fourth proportional to 30,391.20, 45,541.44 and 18,714.24 is: 28,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.20 : 45,541.44 = 18,714.24 : x
  2. Step 2: Convert to fraction form
    30,391.20/45,541.44 = 18,714.24/x
  3. Step 3: Cross multiply
    30,391.20x = 45,541.44 × 18,714.24
  4. Step 4: Simplify right side
    30,391.20x = 852,273,438.11
  5. Step 5: Solve for x
    x = 852,273,438.11/30,391.20
  6. Step 6: Final answer
    x = 28,043.43

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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.