Home / 31,800.02-43,886.07-18,371.84

Finding the Fourth Proportional to 31,800.02, 43,886.07 and 18,371.84

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Solution

The fourth proportional to 31,800.02, 43,886.07 and 18,371.84 is: 25,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.02 : 43,886.07 = 18,371.84 : x
  2. Step 2: Convert to fraction form
    31,800.02/43,886.07 = 18,371.84/x
  3. Step 3: Cross multiply
    31,800.02x = 43,886.07 × 18,371.84
  4. Step 4: Simplify right side
    31,800.02x = 806,267,856.27
  5. Step 5: Solve for x
    x = 806,267,856.27/31,800.02
  6. Step 6: Final answer
    x = 25,354.32

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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.