Home / 31,752.37-43,798.19-20,402.36

Finding the Fourth Proportional to 31,752.37, 43,798.19 and 20,402.36

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Solution

The fourth proportional to 31,752.37, 43,798.19 and 20,402.36 is: 28,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752.37 : 43,798.19 = 20,402.36 : x
  2. Step 2: Convert to fraction form
    31,752.37/43,798.19 = 20,402.36/x
  3. Step 3: Cross multiply
    31,752.37x = 43,798.19 × 20,402.36
  4. Step 4: Simplify right side
    31,752.37x = 893,586,439.73
  5. Step 5: Solve for x
    x = 893,586,439.73/31,752.37
  6. Step 6: Final answer
    x = 28,142.35

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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.