Home / 31,907.77-47,864.93-12,202.90

Finding the Fourth Proportional to 31,907.77, 47,864.93 and 12,202.90

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Solution

The fourth proportional to 31,907.77, 47,864.93 and 12,202.90 is: 18,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,907.77 : 47,864.93 = 12,202.90 : x
  2. Step 2: Convert to fraction form
    31,907.77/47,864.93 = 12,202.90/x
  3. Step 3: Cross multiply
    31,907.77x = 47,864.93 × 12,202.90
  4. Step 4: Simplify right side
    31,907.77x = 584,091,021.75
  5. Step 5: Solve for x
    x = 584,091,021.75/31,907.77
  6. Step 6: Final answer
    x = 18,305.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.