Home / 21,731.74-30,003.74-14,937.06

Finding the Fourth Proportional to 21,731.74, 30,003.74 and 14,937.06

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Solution

The fourth proportional to 21,731.74, 30,003.74 and 14,937.06 is: 20,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.74 : 30,003.74 = 14,937.06 : x
  2. Step 2: Convert to fraction form
    21,731.74/30,003.74 = 14,937.06/x
  3. Step 3: Cross multiply
    21,731.74x = 30,003.74 × 14,937.06
  4. Step 4: Simplify right side
    21,731.74x = 448,167,664.60
  5. Step 5: Solve for x
    x = 448,167,664.60/21,731.74
  6. Step 6: Final answer
    x = 20,622.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.