Home / 31,748.04-43,832.22-20,437.20

Finding the Fourth Proportional to 31,748.04, 43,832.22 and 20,437.20

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Solution

The fourth proportional to 31,748.04, 43,832.22 and 20,437.20 is: 28,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.04 : 43,832.22 = 20,437.20 : x
  2. Step 2: Convert to fraction form
    31,748.04/43,832.22 = 20,437.20/x
  3. Step 3: Cross multiply
    31,748.04x = 43,832.22 × 20,437.20
  4. Step 4: Simplify right side
    31,748.04x = 895,807,846.58
  5. Step 5: Solve for x
    x = 895,807,846.58/31,748.04
  6. Step 6: Final answer
    x = 28,216.16

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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.