Home / 31,429.22-43,373.49-18,851.54

Finding the Fourth Proportional to 31,429.22, 43,373.49 and 18,851.54

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Solution

The fourth proportional to 31,429.22, 43,373.49 and 18,851.54 is: 26,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.22 : 43,373.49 = 18,851.54 : x
  2. Step 2: Convert to fraction form
    31,429.22/43,373.49 = 18,851.54/x
  3. Step 3: Cross multiply
    31,429.22x = 43,373.49 × 18,851.54
  4. Step 4: Simplify right side
    31,429.22x = 817,657,081.67
  5. Step 5: Solve for x
    x = 817,657,081.67/31,429.22
  6. Step 6: Final answer
    x = 26,015.82

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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.