Home / 21,437.16-29,584.19-12,483.21

Finding the Fourth Proportional to 21,437.16, 29,584.19 and 12,483.21

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Solution

The fourth proportional to 21,437.16, 29,584.19 and 12,483.21 is: 17,227.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.16 : 29,584.19 = 12,483.21 : x
  2. Step 2: Convert to fraction form
    21,437.16/29,584.19 = 12,483.21/x
  3. Step 3: Cross multiply
    21,437.16x = 29,584.19 × 12,483.21
  4. Step 4: Simplify right side
    21,437.16x = 369,305,728.38
  5. Step 5: Solve for x
    x = 369,305,728.38/21,437.16
  6. Step 6: Final answer
    x = 17,227.37

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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.