Home / 30,606.81-42,236.31-17,178.82

Finding the Fourth Proportional to 30,606.81, 42,236.31 and 17,178.82

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Solution

The fourth proportional to 30,606.81, 42,236.31 and 17,178.82 is: 23,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,606.81 : 42,236.31 = 17,178.82 : x
  2. Step 2: Convert to fraction form
    30,606.81/42,236.31 = 17,178.82/x
  3. Step 3: Cross multiply
    30,606.81x = 42,236.31 × 17,178.82
  4. Step 4: Simplify right side
    30,606.81x = 725,569,966.95
  5. Step 5: Solve for x
    x = 725,569,966.95/30,606.81
  6. Step 6: Final answer
    x = 23,706.16

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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.