Home / 31,247.76-46,877.04-13,719.36

Finding the Fourth Proportional to 31,247.76, 46,877.04 and 13,719.36

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Solution

The fourth proportional to 31,247.76, 46,877.04 and 13,719.36 is: 20,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.76 : 46,877.04 = 13,719.36 : x
  2. Step 2: Convert to fraction form
    31,247.76/46,877.04 = 13,719.36/x
  3. Step 3: Cross multiply
    31,247.76x = 46,877.04 × 13,719.36
  4. Step 4: Simplify right side
    31,247.76x = 643,122,987.49
  5. Step 5: Solve for x
    x = 643,122,987.49/31,247.76
  6. Step 6: Final answer
    x = 20,581.41

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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.