Home / 39,235.60-58,850.70-12,581.20

Finding the Fourth Proportional to 39,235.60, 58,850.70 and 12,581.20

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Solution

The fourth proportional to 39,235.60, 58,850.70 and 12,581.20 is: 18,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.60 : 58,850.70 = 12,581.20 : x
  2. Step 2: Convert to fraction form
    39,235.60/58,850.70 = 12,581.20/x
  3. Step 3: Cross multiply
    39,235.60x = 58,850.70 × 12,581.20
  4. Step 4: Simplify right side
    39,235.60x = 740,412,426.84
  5. Step 5: Solve for x
    x = 740,412,426.84/39,235.60
  6. Step 6: Final answer
    x = 18,870.93

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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.