Home / 21,333.05-31,953.40-15,476.75

Finding the Fourth Proportional to 21,333.05, 31,953.40 and 15,476.75

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Solution

The fourth proportional to 21,333.05, 31,953.40 and 15,476.75 is: 23,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.05 : 31,953.40 = 15,476.75 : x
  2. Step 2: Convert to fraction form
    21,333.05/31,953.40 = 15,476.75/x
  3. Step 3: Cross multiply
    21,333.05x = 31,953.40 × 15,476.75
  4. Step 4: Simplify right side
    21,333.05x = 494,534,783.45
  5. Step 5: Solve for x
    x = 494,534,783.45/21,333.05
  6. Step 6: Final answer
    x = 23,181.63

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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.