Home / 38,765.40-58,142.64-12,466.80

Finding the Fourth Proportional to 38,765.40, 58,142.64 and 12,466.80

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Solution

The fourth proportional to 38,765.40, 58,142.64 and 12,466.80 is: 18,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.40 : 58,142.64 = 12,466.80 : x
  2. Step 2: Convert to fraction form
    38,765.40/58,142.64 = 12,466.80/x
  3. Step 3: Cross multiply
    38,765.40x = 58,142.64 × 12,466.80
  4. Step 4: Simplify right side
    38,765.40x = 724,852,664.35
  5. Step 5: Solve for x
    x = 724,852,664.35/38,765.40
  6. Step 6: Final answer
    x = 18,698.44

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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.