Home / 31,525.72-47,288.58-12,805.72

Finding the Fourth Proportional to 31,525.72, 47,288.58 and 12,805.72

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Solution

The fourth proportional to 31,525.72, 47,288.58 and 12,805.72 is: 19,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.72 : 47,288.58 = 12,805.72 : x
  2. Step 2: Convert to fraction form
    31,525.72/47,288.58 = 12,805.72/x
  3. Step 3: Cross multiply
    31,525.72x = 47,288.58 × 12,805.72
  4. Step 4: Simplify right side
    31,525.72x = 605,564,314.68
  5. Step 5: Solve for x
    x = 605,564,314.68/31,525.72
  6. Step 6: Final answer
    x = 19,208.58

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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.