Home / 39,257.21-58,877.49-12,955.70

Finding the Fourth Proportional to 39,257.21, 58,877.49 and 12,955.70

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Solution

The fourth proportional to 39,257.21, 58,877.49 and 12,955.70 is: 19,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,257.21 : 58,877.49 = 12,955.70 : x
  2. Step 2: Convert to fraction form
    39,257.21/58,877.49 = 12,955.70/x
  3. Step 3: Cross multiply
    39,257.21x = 58,877.49 × 12,955.70
  4. Step 4: Simplify right side
    39,257.21x = 762,799,097.19
  5. Step 5: Solve for x
    x = 762,799,097.19/39,257.21
  6. Step 6: Final answer
    x = 19,430.80

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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.