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Finding the Fourth Proportional to 17,420.40, 24,040.80 and 10,347.84

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Solution

The fourth proportional to 17,420.40, 24,040.80 and 10,347.84 is: 14,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.40 : 24,040.80 = 10,347.84 : x
  2. Step 2: Convert to fraction form
    17,420.40/24,040.80 = 10,347.84/x
  3. Step 3: Cross multiply
    17,420.40x = 24,040.80 × 10,347.84
  4. Step 4: Simplify right side
    17,420.40x = 248,770,351.87
  5. Step 5: Solve for x
    x = 248,770,351.87/17,420.40
  6. Step 6: Final answer
    x = 14,280.40

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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.