Home / 30,116.76-41,561.40-16,688.17

Finding the Fourth Proportional to 30,116.76, 41,561.40 and 16,688.17

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Solution

The fourth proportional to 30,116.76, 41,561.40 and 16,688.17 is: 23,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.76 : 41,561.40 = 16,688.17 : x
  2. Step 2: Convert to fraction form
    30,116.76/41,561.40 = 16,688.17/x
  3. Step 3: Cross multiply
    30,116.76x = 41,561.40 × 16,688.17
  4. Step 4: Simplify right side
    30,116.76x = 693,583,708.64
  5. Step 5: Solve for x
    x = 693,583,708.64/30,116.76
  6. Step 6: Final answer
    x = 23,029.82

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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.