Home / 20,887.94-31,258.70-14,971.35

Finding the Fourth Proportional to 20,887.94, 31,258.70 and 14,971.35

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Solution

The fourth proportional to 20,887.94, 31,258.70 and 14,971.35 is: 22,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.94 : 31,258.70 = 14,971.35 : x
  2. Step 2: Convert to fraction form
    20,887.94/31,258.70 = 14,971.35/x
  3. Step 3: Cross multiply
    20,887.94x = 31,258.70 × 14,971.35
  4. Step 4: Simplify right side
    20,887.94x = 467,984,863.39
  5. Step 5: Solve for x
    x = 467,984,863.39/20,887.94
  6. Step 6: Final answer
    x = 22,404.55

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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.