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Finding the Fourth Proportional to 17,978.20, 24,810.04 and 10,020.95

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Solution

The fourth proportional to 17,978.20, 24,810.04 and 10,020.95 is: 13,828.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978.20 : 24,810.04 = 10,020.95 : x
  2. Step 2: Convert to fraction form
    17,978.20/24,810.04 = 10,020.95/x
  3. Step 3: Cross multiply
    17,978.20x = 24,810.04 × 10,020.95
  4. Step 4: Simplify right side
    17,978.20x = 248,620,077.30
  5. Step 5: Solve for x
    x = 248,620,077.30/17,978.20
  6. Step 6: Final answer
    x = 13,828.97

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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.