Home / 31,154.09-42,992.08-17,725.05

Finding the Fourth Proportional to 31,154.09, 42,992.08 and 17,725.05

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Solution

The fourth proportional to 31,154.09, 42,992.08 and 17,725.05 is: 24,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.09 : 42,992.08 = 17,725.05 : x
  2. Step 2: Convert to fraction form
    31,154.09/42,992.08 = 17,725.05/x
  3. Step 3: Cross multiply
    31,154.09x = 42,992.08 × 17,725.05
  4. Step 4: Simplify right side
    31,154.09x = 762,036,767.60
  5. Step 5: Solve for x
    x = 762,036,767.60/31,154.09
  6. Step 6: Final answer
    x = 24,460.25

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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.