Home / 39,968.34-55,156.02-21,819

Finding the Fourth Proportional to 39,968.34, 55,156.02 and 21,819

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Solution

The fourth proportional to 39,968.34, 55,156.02 and 21,819 is: 30,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,968.34 : 55,156.02 = 21,819 : x
  2. Step 2: Convert to fraction form
    39,968.34/55,156.02 = 21,819/x
  3. Step 3: Cross multiply
    39,968.34x = 55,156.02 × 21,819
  4. Step 4: Simplify right side
    39,968.34x = 1,203,449,200.38
  5. Step 5: Solve for x
    x = 1,203,449,200.38/39,968.34
  6. Step 6: Final answer
    x = 30,110.06

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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.