Home / 35,821.20-49,432.47-19,905.12

Finding the Fourth Proportional to 35,821.20, 49,432.47 and 19,905.12

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Solution

The fourth proportional to 35,821.20, 49,432.47 and 19,905.12 is: 27,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,821.20 : 49,432.47 = 19,905.12 : x
  2. Step 2: Convert to fraction form
    35,821.20/49,432.47 = 19,905.12/x
  3. Step 3: Cross multiply
    35,821.20x = 49,432.47 × 19,905.12
  4. Step 4: Simplify right side
    35,821.20x = 983,959,247.25
  5. Step 5: Solve for x
    x = 983,959,247.25/35,821.20
  6. Step 6: Final answer
    x = 27,468.63

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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.