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Finding the Fourth Proportional to 35,857.61, 49,485.11 and 20,750.98

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Solution

The fourth proportional to 35,857.61, 49,485.11 and 20,750.98 is: 28,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,857.61 : 49,485.11 = 20,750.98 : x
  2. Step 2: Convert to fraction form
    35,857.61/49,485.11 = 20,750.98/x
  3. Step 3: Cross multiply
    35,857.61x = 49,485.11 × 20,750.98
  4. Step 4: Simplify right side
    35,857.61x = 1,026,864,527.91
  5. Step 5: Solve for x
    x = 1,026,864,527.91/35,857.61
  6. Step 6: Final answer
    x = 28,637.28

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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.