Home / 31,056.13-42,857.42-16,908.97

Finding the Fourth Proportional to 31,056.13, 42,857.42 and 16,908.97

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Solution

The fourth proportional to 31,056.13, 42,857.42 and 16,908.97 is: 23,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.13 : 42,857.42 = 16,908.97 : x
  2. Step 2: Convert to fraction form
    31,056.13/42,857.42 = 16,908.97/x
  3. Step 3: Cross multiply
    31,056.13x = 42,857.42 × 16,908.97
  4. Step 4: Simplify right side
    31,056.13x = 724,674,829.06
  5. Step 5: Solve for x
    x = 724,674,829.06/31,056.13
  6. Step 6: Final answer
    x = 23,334.36

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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.