Home / 15,542.19-21,441.80-10,829.21

Finding the Fourth Proportional to 15,542.19, 21,441.80 and 10,829.21

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Solution

The fourth proportional to 15,542.19, 21,441.80 and 10,829.21 is: 14,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.19 : 21,441.80 = 10,829.21 : x
  2. Step 2: Convert to fraction form
    15,542.19/21,441.80 = 10,829.21/x
  3. Step 3: Cross multiply
    15,542.19x = 21,441.80 × 10,829.21
  4. Step 4: Simplify right side
    15,542.19x = 232,197,674.84
  5. Step 5: Solve for x
    x = 232,197,674.84/15,542.19
  6. Step 6: Final answer
    x = 14,939.83

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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.