Home / 31,614.36-47,388.60-12,886.26

Finding the Fourth Proportional to 31,614.36, 47,388.60 and 12,886.26

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Solution

The fourth proportional to 31,614.36, 47,388.60 and 12,886.26 is: 19,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,614.36 : 47,388.60 = 12,886.26 : x
  2. Step 2: Convert to fraction form
    31,614.36/47,388.60 = 12,886.26/x
  3. Step 3: Cross multiply
    31,614.36x = 47,388.60 × 12,886.26
  4. Step 4: Simplify right side
    31,614.36x = 610,661,820.64
  5. Step 5: Solve for x
    x = 610,661,820.64/31,614.36
  6. Step 6: Final answer
    x = 19,315.96

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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.