Home / 29,382.93-40,538.43-18,778.68

Finding the Fourth Proportional to 29,382.93, 40,538.43 and 18,778.68

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Solution

The fourth proportional to 29,382.93, 40,538.43 and 18,778.68 is: 25,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,382.93 : 40,538.43 = 18,778.68 : x
  2. Step 2: Convert to fraction form
    29,382.93/40,538.43 = 18,778.68/x
  3. Step 3: Cross multiply
    29,382.93x = 40,538.43 × 18,778.68
  4. Step 4: Simplify right side
    29,382.93x = 761,258,204.67
  5. Step 5: Solve for x
    x = 761,258,204.67/29,382.93
  6. Step 6: Final answer
    x = 25,908.18

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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.