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Finding the Fourth Proportional to 35,009.65, 48,311.40 and 19,900.21

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Solution

The fourth proportional to 35,009.65, 48,311.40 and 19,900.21 is: 27,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,009.65 : 48,311.40 = 19,900.21 : x
  2. Step 2: Convert to fraction form
    35,009.65/48,311.40 = 19,900.21/x
  3. Step 3: Cross multiply
    35,009.65x = 48,311.40 × 19,900.21
  4. Step 4: Simplify right side
    35,009.65x = 961,407,005.39
  5. Step 5: Solve for x
    x = 961,407,005.39/35,009.65
  6. Step 6: Final answer
    x = 27,461.20

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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.