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Finding the Fourth Proportional to 35,988.71, 49,664.34 and 20,072.21

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Solution

The fourth proportional to 35,988.71, 49,664.34 and 20,072.21 is: 27,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,988.71 : 49,664.34 = 20,072.21 : x
  2. Step 2: Convert to fraction form
    35,988.71/49,664.34 = 20,072.21/x
  3. Step 3: Cross multiply
    35,988.71x = 49,664.34 × 20,072.21
  4. Step 4: Simplify right side
    35,988.71x = 996,872,813.67
  5. Step 5: Solve for x
    x = 996,872,813.67/35,988.71
  6. Step 6: Final answer
    x = 27,699.60

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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.