Home / 23,045.40-31,805.68-12,975.80

Finding the Fourth Proportional to 23,045.40, 31,805.68 and 12,975.80

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Solution

The fourth proportional to 23,045.40, 31,805.68 and 12,975.80 is: 17,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,045.40 : 31,805.68 = 12,975.80 : x
  2. Step 2: Convert to fraction form
    23,045.40/31,805.68 = 12,975.80/x
  3. Step 3: Cross multiply
    23,045.40x = 31,805.68 × 12,975.80
  4. Step 4: Simplify right side
    23,045.40x = 412,703,918.64
  5. Step 5: Solve for x
    x = 412,703,918.64/23,045.40
  6. Step 6: Final answer
    x = 17,908.30

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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.