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Finding the Fourth Proportional to 35,491.80, 48,980.40 and 19,576.20

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Solution

The fourth proportional to 35,491.80, 48,980.40 and 19,576.20 is: 27,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.80 : 48,980.40 = 19,576.20 : x
  2. Step 2: Convert to fraction form
    35,491.80/48,980.40 = 19,576.20/x
  3. Step 3: Cross multiply
    35,491.80x = 48,980.40 × 19,576.20
  4. Step 4: Simplify right side
    35,491.80x = 958,850,106.48
  5. Step 5: Solve for x
    x = 958,850,106.48/35,491.80
  6. Step 6: Final answer
    x = 27,016.10

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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.