Home / 31,016.60-42,803.81-19,086.92

Finding the Fourth Proportional to 31,016.60, 42,803.81 and 19,086.92

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Solution

The fourth proportional to 31,016.60, 42,803.81 and 19,086.92 is: 26,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,016.60 : 42,803.81 = 19,086.92 : x
  2. Step 2: Convert to fraction form
    31,016.60/42,803.81 = 19,086.92/x
  3. Step 3: Cross multiply
    31,016.60x = 42,803.81 × 19,086.92
  4. Step 4: Simplify right side
    31,016.60x = 816,992,587.71
  5. Step 5: Solve for x
    x = 816,992,587.71/31,016.60
  6. Step 6: Final answer
    x = 26,340.50

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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.