Home / 31,135.32-42,965.37-17,707.68

Finding the Fourth Proportional to 31,135.32, 42,965.37 and 17,707.68

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Solution

The fourth proportional to 31,135.32, 42,965.37 and 17,707.68 is: 24,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135.32 : 42,965.37 = 17,707.68 : x
  2. Step 2: Convert to fraction form
    31,135.32/42,965.37 = 17,707.68/x
  3. Step 3: Cross multiply
    31,135.32x = 42,965.37 × 17,707.68
  4. Step 4: Simplify right side
    31,135.32x = 760,817,023.04
  5. Step 5: Solve for x
    x = 760,817,023.04/31,135.32
  6. Step 6: Final answer
    x = 24,435.82

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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.