Home / 31,674.05-43,715.55-18,242.84

Finding the Fourth Proportional to 31,674.05, 43,715.55 and 18,242.84

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Solution

The fourth proportional to 31,674.05, 43,715.55 and 18,242.84 is: 25,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,674.05 : 43,715.55 = 18,242.84 : x
  2. Step 2: Convert to fraction form
    31,674.05/43,715.55 = 18,242.84/x
  3. Step 3: Cross multiply
    31,674.05x = 43,715.55 × 18,242.84
  4. Step 4: Simplify right side
    31,674.05x = 797,495,784.16
  5. Step 5: Solve for x
    x = 797,495,784.16/31,674.05
  6. Step 6: Final answer
    x = 25,178.21

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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.