Home / 21,224.03-29,292.44-15,275.39

Finding the Fourth Proportional to 21,224.03, 29,292.44 and 15,275.39

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Solution

The fourth proportional to 21,224.03, 29,292.44 and 15,275.39 is: 21,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.03 : 29,292.44 = 15,275.39 : x
  2. Step 2: Convert to fraction form
    21,224.03/29,292.44 = 15,275.39/x
  3. Step 3: Cross multiply
    21,224.03x = 29,292.44 × 15,275.39
  4. Step 4: Simplify right side
    21,224.03x = 447,453,222.21
  5. Step 5: Solve for x
    x = 447,453,222.21/21,224.03
  6. Step 6: Final answer
    x = 21,082.39

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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.