Home / 21,226.48-29,283.45-13,254.86

Finding the Fourth Proportional to 21,226.48, 29,283.45 and 13,254.86

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Solution

The fourth proportional to 21,226.48, 29,283.45 and 13,254.86 is: 18,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.48 : 29,283.45 = 13,254.86 : x
  2. Step 2: Convert to fraction form
    21,226.48/29,283.45 = 13,254.86/x
  3. Step 3: Cross multiply
    21,226.48x = 29,283.45 × 13,254.86
  4. Step 4: Simplify right side
    21,226.48x = 388,148,030.07
  5. Step 5: Solve for x
    x = 388,148,030.07/21,226.48
  6. Step 6: Final answer
    x = 18,286.03

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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.