Home / 21,425.10-29,563.13-13,461.69

Finding the Fourth Proportional to 21,425.10, 29,563.13 and 13,461.69

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Solution

The fourth proportional to 21,425.10, 29,563.13 and 13,461.69 is: 18,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.10 : 29,563.13 = 13,461.69 : x
  2. Step 2: Convert to fraction form
    21,425.10/29,563.13 = 13,461.69/x
  3. Step 3: Cross multiply
    21,425.10x = 29,563.13 × 13,461.69
  4. Step 4: Simplify right side
    21,425.10x = 397,969,624.18
  5. Step 5: Solve for x
    x = 397,969,624.18/21,425.10
  6. Step 6: Final answer
    x = 18,574.92

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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.