Home / 31,056.08-42,855.96-16,908.88

Finding the Fourth Proportional to 31,056.08, 42,855.96 and 16,908.88

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Solution

The fourth proportional to 31,056.08, 42,855.96 and 16,908.88 is: 23,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.08 : 42,855.96 = 16,908.88 : x
  2. Step 2: Convert to fraction form
    31,056.08/42,855.96 = 16,908.88/x
  3. Step 3: Cross multiply
    31,056.08x = 42,855.96 × 16,908.88
  4. Step 4: Simplify right side
    31,056.08x = 724,646,284.92
  5. Step 5: Solve for x
    x = 724,646,284.92/31,056.08
  6. Step 6: Final answer
    x = 23,333.48

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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.