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Finding the Fourth Proportional to 30,441.60, 42,006.60 and 17,010.98

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Solution

The fourth proportional to 30,441.60, 42,006.60 and 17,010.98 is: 23,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,441.60 : 42,006.60 = 17,010.98 : x
  2. Step 2: Convert to fraction form
    30,441.60/42,006.60 = 17,010.98/x
  3. Step 3: Cross multiply
    30,441.60x = 42,006.60 × 17,010.98
  4. Step 4: Simplify right side
    30,441.60x = 714,573,432.47
  5. Step 5: Solve for x
    x = 714,573,432.47/30,441.60
  6. Step 6: Final answer
    x = 23,473.58

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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.