Home / 23,047.12-31,805.58-12,975.90

Finding the Fourth Proportional to 23,047.12, 31,805.58 and 12,975.90

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Solution

The fourth proportional to 23,047.12, 31,805.58 and 12,975.90 is: 17,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,047.12 : 31,805.58 = 12,975.90 : x
  2. Step 2: Convert to fraction form
    23,047.12/31,805.58 = 12,975.90/x
  3. Step 3: Cross multiply
    23,047.12x = 31,805.58 × 12,975.90
  4. Step 4: Simplify right side
    23,047.12x = 412,706,025.52
  5. Step 5: Solve for x
    x = 412,706,025.52/23,047.12
  6. Step 6: Final answer
    x = 17,907.05

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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.