Home / 31,488.96-47,244.36-13,971.06

Finding the Fourth Proportional to 31,488.96, 47,244.36 and 13,971.06

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Solution

The fourth proportional to 31,488.96, 47,244.36 and 13,971.06 is: 20,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,488.96 : 47,244.36 = 13,971.06 : x
  2. Step 2: Convert to fraction form
    31,488.96/47,244.36 = 13,971.06/x
  3. Step 3: Cross multiply
    31,488.96x = 47,244.36 × 13,971.06
  4. Step 4: Simplify right side
    31,488.96x = 660,053,788.22
  5. Step 5: Solve for x
    x = 660,053,788.22/31,488.96
  6. Step 6: Final answer
    x = 20,961.43

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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.