Home / 31,049.20-42,846.60-16,901.20

Finding the Fourth Proportional to 31,049.20, 42,846.60 and 16,901.20

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Solution

The fourth proportional to 31,049.20, 42,846.60 and 16,901.20 is: 23,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,049.20 : 42,846.60 = 16,901.20 : x
  2. Step 2: Convert to fraction form
    31,049.20/42,846.60 = 16,901.20/x
  3. Step 3: Cross multiply
    31,049.20x = 42,846.60 × 16,901.20
  4. Step 4: Simplify right side
    31,049.20x = 724,158,955.92
  5. Step 5: Solve for x
    x = 724,158,955.92/31,049.20
  6. Step 6: Final answer
    x = 23,322.95

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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.