Home / 39,188.07-58,769.69-12,886.70

Finding the Fourth Proportional to 39,188.07, 58,769.69 and 12,886.70

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Solution

The fourth proportional to 39,188.07, 58,769.69 and 12,886.70 is: 19,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.07 : 58,769.69 = 12,886.70 : x
  2. Step 2: Convert to fraction form
    39,188.07/58,769.69 = 12,886.70/x
  3. Step 3: Cross multiply
    39,188.07x = 58,769.69 × 12,886.70
  4. Step 4: Simplify right side
    39,188.07x = 757,347,005.84
  5. Step 5: Solve for x
    x = 757,347,005.84/39,188.07
  6. Step 6: Final answer
    x = 19,325.96

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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.