Home / 38,685.98-58,025.10-12,383.66

Finding the Fourth Proportional to 38,685.98, 58,025.10 and 12,383.66

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Solution

The fourth proportional to 38,685.98, 58,025.10 and 12,383.66 is: 18,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,685.98 : 58,025.10 = 12,383.66 : x
  2. Step 2: Convert to fraction form
    38,685.98/58,025.10 = 12,383.66/x
  3. Step 3: Cross multiply
    38,685.98x = 58,025.10 × 12,383.66
  4. Step 4: Simplify right side
    38,685.98x = 718,563,109.87
  5. Step 5: Solve for x
    x = 718,563,109.87/38,685.98
  6. Step 6: Final answer
    x = 18,574.25

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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.