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Finding the Fourth Proportional to 35,903.16, 49,549.05 and 20,799.90

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Solution

The fourth proportional to 35,903.16, 49,549.05 and 20,799.90 is: 28,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,903.16 : 49,549.05 = 20,799.90 : x
  2. Step 2: Convert to fraction form
    35,903.16/49,549.05 = 20,799.90/x
  3. Step 3: Cross multiply
    35,903.16x = 49,549.05 × 20,799.90
  4. Step 4: Simplify right side
    35,903.16x = 1,030,615,285.10
  5. Step 5: Solve for x
    x = 1,030,615,285.10/35,903.16
  6. Step 6: Final answer
    x = 28,705.42

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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.