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Finding the Fourth Proportional to 70,012.96, 105,020.16 and 17,422.44

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Solution

The fourth proportional to 70,012.96, 105,020.16 and 17,422.44 is: 26,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.96 : 105,020.16 = 17,422.44 : x
  2. Step 2: Convert to fraction form
    70,012.96/105,020.16 = 17,422.44/x
  3. Step 3: Cross multiply
    70,012.96x = 105,020.16 × 17,422.44
  4. Step 4: Simplify right side
    70,012.96x = 1,829,707,592.47
  5. Step 5: Solve for x
    x = 1,829,707,592.47/70,012.96
  6. Step 6: Final answer
    x = 26,133.84

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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.