Home / 21,534.02-29,708.49-15,882.33

Finding the Fourth Proportional to 21,534.02, 29,708.49 and 15,882.33

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Solution

The fourth proportional to 21,534.02, 29,708.49 and 15,882.33 is: 21,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.02 : 29,708.49 = 15,882.33 : x
  2. Step 2: Convert to fraction form
    21,534.02/29,708.49 = 15,882.33/x
  3. Step 3: Cross multiply
    21,534.02x = 29,708.49 × 15,882.33
  4. Step 4: Simplify right side
    21,534.02x = 471,840,041.98
  5. Step 5: Solve for x
    x = 471,840,041.98/21,534.02
  6. Step 6: Final answer
    x = 21,911.38

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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.