Home / 31,041.28-42,761.70-23,069.68

Finding the Fourth Proportional to 31,041.28, 42,761.70 and 23,069.68

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Solution

The fourth proportional to 31,041.28, 42,761.70 and 23,069.68 is: 31,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041.28 : 42,761.70 = 23,069.68 : x
  2. Step 2: Convert to fraction form
    31,041.28/42,761.70 = 23,069.68/x
  3. Step 3: Cross multiply
    31,041.28x = 42,761.70 × 23,069.68
  4. Step 4: Simplify right side
    31,041.28x = 986,498,735.26
  5. Step 5: Solve for x
    x = 986,498,735.26/31,041.28
  6. Step 6: Final answer
    x = 31,780.22

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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.