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Finding the Fourth Proportional to 27,281.04, 40,905.10 and 10,415.15

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Solution

The fourth proportional to 27,281.04, 40,905.10 and 10,415.15 is: 15,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281.04 : 40,905.10 = 10,415.15 : x
  2. Step 2: Convert to fraction form
    27,281.04/40,905.10 = 10,415.15/x
  3. Step 3: Cross multiply
    27,281.04x = 40,905.10 × 10,415.15
  4. Step 4: Simplify right side
    27,281.04x = 426,032,714.15
  5. Step 5: Solve for x
    x = 426,032,714.15/27,281.04
  6. Step 6: Final answer
    x = 15,616.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.