Home / 15,308.46-21,131.52-14,887.14

Finding the Fourth Proportional to 15,308.46, 21,131.52 and 14,887.14

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Solution

The fourth proportional to 15,308.46, 21,131.52 and 14,887.14 is: 20,549.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.46 : 21,131.52 = 14,887.14 : x
  2. Step 2: Convert to fraction form
    15,308.46/21,131.52 = 14,887.14/x
  3. Step 3: Cross multiply
    15,308.46x = 21,131.52 × 14,887.14
  4. Step 4: Simplify right side
    15,308.46x = 314,587,896.65
  5. Step 5: Solve for x
    x = 314,587,896.65/15,308.46
  6. Step 6: Final answer
    x = 20,549.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.